The 20 Best Gastroesophageal Reflux Disease (GERD) Doctors Near Me in Lake St. Louis, MO

Find the Top Gastroesophageal Reflux Disease (GERD) Experts and Specialists

Last Updated: 02/22/2026

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MediFind found 46 doctor with experience in Gastroesophageal Reflux Disease (GERD) near Lake St. Louis, MO. Of these, 44 are Experienced and 2 are Advanced.

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46 providers found
    Louay Omran
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (1.6 miles away)
    Languages Spoken:
    English

    Louay Omran, MD, is a board-certified gastroenterologist, and a formally trained advanced endoscopist. He has the ability to perform endoscopic ultrasound (EUS), ERCP, and luminal stenting to relieve obstruction. Dr. Omran is available for the evaluation and management of patients with both common and challenging gastrointestinal disorders. Dr. Omran attended medical school in Syria, and completed internal medicine residencies and two fellowships (geriatric medicine and gastroenterology & hepatology) at Saint Louis University. He also completed a fellowship in advanced endoscopy and pancreatic diseases at the Medical University of South Carolina. He is a board certified physician nutritionist. Before joining SSM Health Medical Group, Dr. Omran practiced gastroenterology and advanced endoscopy at SSM Health Saint Louis University Hospital as a member of SLUCare. For over 15 years, he was a key faculty member participating in the education and training of students, residents and fellows. He won numerous teaching awards in the process. Dr. Omran was elected to become a Fellow of the American College of Physicians. He is also a member of the American Society for Gastrointestinal Endoscopy, the American Gastrointestinal Association, and the American College of Gastroenterology. Dr. Omran is married to Pascale Salam, MD, and has two sons. His hobbies include reading modern history and biographies, trivia, soccer and tennis. Dr. Omran is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Choledocholithiasis, Childhood Pancreatitis, Acute Pancreatitis, Endoscopy, and Colonoscopy.

    J. Matthew Conoyer
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology

    Midwest ENT Centre

    4790 Executive Centre Parkway, 
    St.peters, MO 
     (9.9 miles away)
    Languages Spoken:
    English

    Dr. Conoyer is a seventh-generation resident of St. Charles County and a second-generation otolaryngologist—head & neck surgeon. He grew up in St. Charles, graduating from the Academy of the Sacred Heart in 1991 and from Duchesne High School in 1995. He then attended St. Louis University, where he majored in biology while minoring in philosophy and theology. In college, Dr. Conoyer was inducted into the prestigious Phi Beta Kappa and Alpha Sigma Nu Honor Societies. He graduated summa cum laude in 1999 and was selected for early admission to the Vanderbilt University School of Medicine in Nashville, Tennessee. He earned his Doctor of Medicine degree from Vanderbilt in 2003. After medical school, Dr. Conoyer continued his medical training at Vanderbilt University Medical Center, where he served his surgical internship from 2003-2004 and his residency in otolaryngology—head & neck surgery from 2004-2008. During residency, he authored multiple medical textbook contributions and original scientific articles. His original findings linking smoking to hearing loss garnered attention from national news outlets and many scientific citations. After serving a year as Chief Resident, he moved his family back home to St. Charles County to join Midwest ENT Centre in 2008. Since that time, Dr. Conoyer has developed a reputation as a regional early adopter of emerging medical technologies and minimally-invasive surgical procedures that offer better outcomes and quality-of-life to his patients. He was the first in the bi-state area to perform an in-office balloon sinus dilation procedure and remains among the nation’s most experienced with these procedures. He has similarly been a pioneer with many other office-based ENT technologies, including the Vivaer® procedure (treating nasal obstruction), Eustachian tube dilation, posterior nasal nerve treatments for vasomotor rhinitis, steroid-eluting sinus implantations and the fitting and placement of direct-drive hearing aids. Dr. Conoyer lives in St. Charles County with his wife, Ellen, and their four children. When not caring for his patients, he enjoys coaching youth basketball, wildlife land management and hunting. He is active in his Church, his local parish, and several outreach ministries. Dr. Conoyer is board-certified by the American Academy of Otolaryngology—Head & Neck Surgery and has been elected as a Fellow of the American College of Surgeons and the American Academy of Otolaryngic Allergy. Dr. Conoyer is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Nasal Septal Hematoma, Sinusitis, Infant Hearing Loss, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

    Karen Boone
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology

    Midwest ENT Centre

    4790 Executive Centre Parkway, 
    St.peters, MO 
     (9.9 miles away)
    Experience:
    36+ years
    Languages Spoken:
    English

    A third-generation physician, Dr. Boone began her otolaryngology practice in St. Charles County in the 1990s. Her father, Dr. James Vighi, also an otolaryngologist, practiced in the county for 25 years.  A board-certified otolaryngologist, Dr. Boone is a St. Louis native who attended Chesterfield’s Parkway Central High School before achieving a degree in biomedical engineering at Northwestern University. She received her medical degree from Case Western Reserve School of Medicine where she was a member of Alpha Omega Alpha Honor Society and recipient of the Janet M. Glasgow Memorial Achievement Award. After medical school, Dr. Boone completed her surgical internship and her otolaryngology residency at St. Louis University.  During her residency, she received several achievement awards including Cardinal Glennon department of pediatric surgery intern award given to the surgical intern who exemplifies outstanding surgical skill and patient care.  She was also awarded the Department of Otolaryngology Resident Research Award given the best resident research project judged by an guest professor.  During her residency, she published several articles ranging from newborn hearing screening to intraoperative nerve monitoring. A fellow of the American Academy of Otolaryngology, Dr. Boone is also a member of the American Academy of Otolaryngologic Allergy, St. Charles-Lincoln County Medical Society, the Missouri State Medical Association, and the American Medical Association. Dr. Boone has been an integral part in the development of the electronic medical records implementation.  She has served on the board of Allscripts for many years and is dedicated to providing the most state of art medical information transparency for her patients.   Philanthropy has been an integral part of Dr. Boone’s life. She has served on several community charity boards in the past. She presently serves as a Board of Directors for Marcy’s Project and is also involved with the St. Louis Zoo Merlin Perkins Society and the St. Louis Winter Opera. Married to Dennis Boone and mother of five children and four grandchildren, Dr. Boone likes to say that she now enjoys the privilege of full-time motherhood with the challenge of a full-time medical practice. When her schedule permits, Dr. Boone enjoys working in her art studio as an artisanal soap maker and painter. Dr. Boone is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Nasal Septal Hematoma, Low Nasal Bridge, Perichondritis, and Infant Hearing Loss.

    Learn about our expert tiers
    Syed Tariq
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology | Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology | Internal Medicine

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (1.6 miles away)
    Languages Spoken:
    English

    "Dr. Tariq is board certified in gastroenterology and internal medicine. His fellowship in gastroenterology and hepatology at Saint Louis University was completed in 2011. Prior to that he had earned board certification in geriatrics and spent over 10 years in the practice of geriatrics and internal medicine, which included patient care, research and teaching, and several directorships of geriatric programs in the St. Louis area. Dr. Tariq's fellowship in geriatrics was served at Saint Louis University, as was his internal medicine residency. ""My years in geriatric medicine were very rewarding. Now with this additional subspecialty, I look forward to helping adult patients of all ages with their gastrointestinal issues. I am excited to have partnered with Dr. Rodemann and SSM Health in this next chapter of my career.""- Syed Tariq, MD". Dr. Tariq is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastrointestinal Bleeding, Crohn's Disease, Familial Adenomatous Polyposis, Colonoscopy, and Endoscopy.

    Joseph Rodemann
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (1.6 miles away)
    Languages Spoken:
    English

    "Dr. Rodemann is board certified in gastroenterology and board certified in internal medicine. He completed a fellowship at the University of Pittsburgh's Division of Gastroenterology, Hepatology and Nutrition, where he was named chief fellow. Prior to that, Dr. Rodemann was a clinical instructor of medicine at Washington University in St. Louis, where he had completed his internal medicine residency. Dr. Rodemann earned his medical degree at Loyola University in Chicago. In addition to inflammatory bowel disease and screening colonoscopy, Dr. Rodemann's areas of interest include irritable bowel syndrome and biliary disease. His particular skills include esophagogastroduodenoscopy, with treatment of variceal and non-variceal bleeding; colonoscopy, with polypectomy and treatment of bleeding; video pill endoscopy; ERCP; PEG placement; and nasal endoscopy with placement of post-pyloric feeding tubes. He is on staff at SSM Health St. Joseph Hospital - Lake Saint Louis. ""I am drawn to gastroenterology because of the opportunity to treat a variety of diseases involving the GI tract, liver and pancreas. I am particularly interested in inflammatory bowel disease and the impact that screening colonoscopy has on preventing colon cancer. I am excited to bring my special training home to the St. Louis area and feel privileged to take care of patients in St. Charles County.""-Joseph Rodemann, MD". Dr. Rodemann is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Morning Sickness, Esophagitis, Swallowing Difficulty, Endoscopy, and Colonoscopy.

    Elizabeth Marsicano
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology | Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology | Internal Medicine

    SSM Health Medical Group

    300 Medical Plaza, Suite 310, 
    Lake St. Louis, MO 
     (1.6 miles away)
    Languages Spoken:
    English

    Dr. Elizabeth Marsicano is a gastroenterologist who treats patients ages 18 and older. She specializes in treating gastroesophageal reflux disease (GERD); esophageal motility/swallowing issues; chronic constipation; chronic diarrhea; celiac disease; Barrett's esophagus; pelvic floor disorders; inflammatory bowel disease (IBD); metabolic liver disease; hepatitis B/C; hemochromatosis; autoimmune liver disease cirrhosis; and gastrointestinal diseases in pregnancy. She also performs colonoscopies and upper endoscopies. Dr. Marsicano aims to create a collaborative relationship with her patients to ensure optimal management of their gastrointestinal concerns through evidence-based practice, education, and mutual understanding. She works closely with her patients and their families to tailor a treatment plan that meets their specific needs and goals. Dr. Marsicano is a founding member of the Missouri Gastroenterology Society; a member of the American College of Gastroenterology; and a member of the American Neurogastroenterology and Motility Society. Fun fact: Dr. Marsicano enjoys traveling, yoga, and reading in her spare time. Dr. Marsicano is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Ascites, Diverticular Disease, Hemorrhoids, Endoscopy, and Gastrectomy.

    Paul Hinton
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine | Pediatrics
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine | Pediatrics

    SSM Health Medical Group

    400 Medical Plaza, Suite 200, 
    Lake St. Louis, MO 
     (1.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Paul Hinton, MD, is an internist and pediatrician who provides comprehensive primary care services on an outpatient basis for patients of all ages, from newborns to adults. He specializes in preventive care; diagnosing, treating, and managing common conditions; and identifying and addressing mental health issues. Dr. Hinton provides quality medical care for his patients, while empowering them to take better care of themselves. Utilizing current medical therapies and positive behavior, he encourages his patients to have the best mind, body, and spirit possible. His patients appreciate how compassionate, thorough, reliable, and friendly he is during their office visits, taking the time to listen to their concerns and answer questions accordingly. Dr. Hinton is a member of the American Academy of Pediatrics and the American Board of Internal Medicine. Fun fact: Dr. Hinton never considered a career in medicine until he took his first biology class in college. Dr. Hinton is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are High Cholesterol, Chronic Obstructive Pulmonary Disease (COPD), Type 2 Diabetes (T2D), Endoscopy, and Gastrostomy.

    Peter Montgomery
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    SSM Health Medical Group

    1598 W. Meyer Road, 
    Wentzville, MO 
     (3.9 miles away)
    Languages Spoken:
    English

    Dr. Montgomery is board certified in family medicine. He completed his residency at Cox Health Systems in Springfield, Missouri, after earning his medical degree at the University of Missouri-Columbia. Dr. Montgomery has been in practice in the Wentzville/Lake Saint Louis area since 1995; he has been with SSM Health since 2008. Dr. Montgomery has a special interest in health maintenance, weight loss, and tobacco cessation. Dr. Montgomery is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Familial Colorectal Cancer, Type 2 Diabetes (T2D), Frontonasal Dysplasia Klippel Feil Syndrome, and Multiple Endocrine Neoplasia Type 1.

    Michael Hemmersmeier
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    SSM Health Medical Group

    1101 Highway K, 
    O Fallon, MO 
     (4.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Hemmersmeier is board certified in family medicine. He completed his residency at Deaconess Hospital - St. Louis after earning his medical degree at Kirksville College of Osteopathic Medicine. Dr. Hemmersmeier has been in practice in O'Fallon, MO since 1998. He has a special interest in sports medicine and has volunteered as a coach in the community and at his church in conjunction with his children's athletic interests. Dr. Hemmersmeier has been awarded recognition from the National Committee for Quality Assurance (NCQA) Diabetes and Stroke Physician Recognition Programs for meeting national standards for diabetes and stroke care. Dr. Hemmersmeier is part of a Patient-Centered Medical Home. Dr. Hemmersmeier uses telehealth services to conduct video office visits with current, established patients for: upper respiratory infection, sore throat, cough, seasonal allergies, skin rashes or lesions, mouth and cold sores, flu symptoms, conjunctivitis, UTI, gout, yeast infection and travel medication. A forward-facing camera and internet access are required, and a tablet or computer/laptop may be used. Telehealth appointments can be scheduled online through MyChart. Dr. Hemmersmeier is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Familial Hypertension, Coronary Heart Disease, Sacroiliac Joint Disease, and Hypothyroidism.

    Ben Conoyer
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology

    Midwest ENT Centre

    4790 Executive Centre Parkway, 
    St.peters, MO 
     (9.9 miles away)
    Languages Spoken:
    English

    Ben Conoyer is an Otolaryngologist in St.peters, Missouri. Dr. Conoyer is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Low Nasal Bridge, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Sinusitis, and Infant Hearing Loss.

    Matthew Page
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Otolaryngology

    Midwest ENT Centre

    4790 Executive Centre Parkway, 
    St.peters, MO 
     (9.9 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Dr. Page is a native of Windsor, Ontario, Canada. He graduated in 1995 from Ecole Secondaire l’Essor – a French Catholic high school in his hometown. He then pursued his pre-medical studies at McGill University in Montreal, Quebec, Canada where he majored in physiology and minored in neuroscience. After graduating in 1999, Dr. Page spent a year in Southern Africa based on the missionary hospital ship M/V Anastasis doing health education and outreach in remote communities in Zambia and Zimbabwe. Having caught the travel bug, he then moved to Australia to pursue his medical degree at the University of Sydney where he graduated with honors in 2004.After medical school, Dr. Page continued his medical training at the University of Missouri – Columbia, serving both his surgical internship from 2005-2006 and residency in Otolaryngology – Head & Neck Surgery from 2006-2010. During residency, he authored many original scientific articles and presented his research at national scientific meetings. He received awards from the American Academy of Otololaryngology – Head & Neck Surgery, including the Resident Leadership Award and a Travel Grant that allowed him to travel to Kenya to perform cleft lip / palate surgery. He was inducted into the Alpha Omega Alpha Medical Honor Society in and received the MU Most Outstanding Resident Award for Excellence in Medical Education.After graduating from residency in 2010, Dr. Page was recruited to the MU School of Medicine faculty, where he served as Assistant Professor of Otolaryngology – Head and Neck Surgery. As an academic surgeon, Dr. Page had a busy clinical practice taking care of patients. He also served as the director of medical student education where he had the opportunity to help train hundreds of future doctors – many of whom are practicing across Missouri. In addition, Dr. Page founded and directed the MU Voice, Swallow and Airway Center – an interdisciplinary center that has become a leader in voice, swallow and airway research.While in Columbia, Dr. Page met his wife Jenna – a St. Louis County native who graduated from Nerinx Hall. With their growing family, the Pages relocated to the St. Louis area in 2016 where they now have an abundance of free babysitters!Since joining Midwest ENT in 2016, Dr. Page has brought his expertise in voice, swallow and airway disorders, as well as in general otolaryngology, to St. Charles County.Dr. Page is board-certified by the American Board of Otolaryngology – Head and Neck Surgery and the Royal College of Surgeons of Canada. He has been elected a Fellow of the American Academy of Otolaryngology – Head and Neck Surgery and the American College of Surgeons. He enjoys traveling to unusual places, jumping on the trampoline and making a huge mess in the kitchen. Dr. Page is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Nasal Septal Hematoma, Infant Hearing Loss, Nonsyndromic Hearing Loss, and Benign Paroxysmal Positional Vertigo.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Office

    200 Brevco Plz Ste 208, 
    Lake Saint Louis, MO 
     (0.6 miles away)
    Languages Spoken:
    English

    Michael Cleary is a Gastroenterologist in Lake Saint Louis, Missouri. Dr. Cleary is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gardner Syndrome, Turcot Syndrome, Crohn's Disease, Gastrectomy, and Endoscopy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Office

    200 Brevco Plz Ste 208, 
    Lake Saint Louis, MO 
     (0.6 miles away)
    Languages Spoken:
    English

    Michael Zerega is an Internal Medicine provider in Lake Saint Louis, Missouri. Dr. Zerega is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Collagenous Colitis, Colitis, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Office

    200 Brevco Plz Ste 208, 
    Lake Saint Louis, MO 
     (0.6 miles away)
    Languages Spoken:
    English

    James Petersen is a Gastroenterologist in Lake Saint Louis, Missouri. Dr. Petersen is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Esophagitis, Familial Adenomatous Polyposis, Viral Gastroenteritis, and Colitis.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Office

    6261 Ronald Reagan Dr Ste B19, 
    Lake Saint Louis, MO 
     (0.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Scott Roos is a primary care provider, practicing in Family Medicine in Lake Saint Louis, Missouri. Dr. Roos is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Type 2 Diabetes (T2D), Familial Combined Hyperlipidemia, Xanthoma, and Cirrhosis.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Compass Health Network Wentzville

    1032 Crosswinds Ct, 
    Wentzville, MO 
     (2.1 miles away)
    Languages Spoken:
    English

    Chad Fowler is a primary care provider, practicing in Family Medicine in Wentzville, Missouri. Dr. Fowler is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Complex Regional Pain Syndrome, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Premier Infectious Disease Consultants-O'Fallon

    20 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (3.8 miles away)
    Languages Spoken:
    English

    Qaiser Jawaid is a Gastroenterologist in O Fallon, Missouri. Dr. Jawaid is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Choledocholithiasis, Diverticular Disease, Menetrier Disease, Endoscopy, and Gastrectomy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Premier Infectious Disease Consultants-O'Fallon

    20 Progress Point Pkwy Ste 206, 
    O Fallon, MO 
     (3.8 miles away)
    Languages Spoken:
    English

    Milton Ochieng is an Internal Medicine provider in O Fallon, Missouri. Dr. Ochieng is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Angiodysplasia of the Colon, Benign Esophageal Stricture, Lower Esophageal Ring, Gastrectomy, and Endoscopy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Office

    2223 Technology Dr Ste 35, 
    O Fallon, MO 
     (3.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Geraldine Ryan is a primary care provider, practicing in Internal Medicine in O Fallon, Missouri. Dr. Ryan is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Melorheostosis with Osteopoikilosis, Melorheostosis, Osteopenia, and Sitosterolemia.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Office

    5551 Winghaven Blvd Ste 250, 
    O Fallon, MO 
     (3.8 miles away)
    Languages Spoken:
    English

    David Lotsoff is a Gastroenterologist in O Fallon, Missouri. Dr. Lotsoff is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Lower Esophageal Ring, Benign Esophageal Stricture, Painful Swallowing, Gastrectomy, and Gastrostomy.

    Showing 1-20 of 46

    Last Updated: 02/22/2026

    What is the definition of Gastroesophageal Reflux Disease (GERD)?

    Gastroesophageal reflux disease (GERD) is a condition in which the stomach contents leak backward from the stomach into the esophagus (food pipe). Food travels from your mouth to the stomach through your esophagus. GERD can irritate the food pipe and cause heartburn and other symptoms.

    When should I see a Gastroesophageal Reflux Disease (GERD) doctor near Lake St. Louis, MO?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Gastroesophageal Reflux Disease (GERD) doctor near Lake St. Louis, MO?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Gastroesophageal Reflux Disease (GERD) doctors near Lake St. Louis, MO?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Gastroesophageal Reflux Disease (GERD) doctors near Lake St. Louis, MO?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Gastroesophageal Reflux Disease (GERD) doctor near Lake St. Louis, MO?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. 

    Why is it important to get a second opinion from a different Gastroesophageal Reflux Disease (GERD) doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Gastroesophageal Reflux Disease (GERD) doctor near Lake St. Louis, MO?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Gastroesophageal Reflux Disease (GERD) doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Gastroesophageal Reflux Disease (GERD) doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Gastroesophageal Reflux Disease (GERD) doctors near Lake St. Louis, MO?

    Look for the filter feature on the left side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Gastroesophageal Reflux Disease (GERD) doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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