Lauren Halvorson is a Gastroenterologist in Laurel, Maryland. Dr. Halvorson is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Gastric Dysmotility, Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Endoscopy, and Colonoscopy.

Darryn Potosky is a Gastroenterologist in Laurel, Maryland. Dr. Potosky is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Primary Biliary Cholangitis, Reynolds Syndrome, Nonalcoholic Steatohepatitis (NASH), Liver Transplant, and Thrombectomy.

Marcia (Mimi) Canto, M.D., M.H.S. is a Professor of Medicine at The Johns Hopkins University School of Medicine. She is also the Director of Endoscopy at the Johns Hopkins Hospital. Dr. Canto received her Bachelor of Science degree from the University of the Philippines in Manila in 1981 (summa cum laude). She received her Doctor of Medicine degree in 1985 from the University of the Philippines and completed her training in Internal Medicine from State University of New York Sciences Center in Brooklyn, Brooklyn, New York. Dr. Canto completed a postdoctoral fellowship in Gastroenterology-Hepatology at The Johns Hopkins University School of Medicine and received a Master of Health Science in Clinical Epidemiology from The Johns Hopkins University School of Hygiene and Public Health in 1993. Dr. Canto came back to Johns Hopkins after spending three years at Case Western Reserve University in Cleveland, Ohio for advanced endoscopic training. Her primary clinical interests include endoscopy, particularly the use of endoscopic ultrasound (EUS) in detecting early pancreatic cancer and its precursors. She has recently shown that endoscopic ultrasound can be used to detect asymptomatic precancerous lesions in patients with a family history of pancreatic cancer. Dr. Canto is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Barrett Esophagus, Familial Pancreatic Cancer, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.

Kester Crosse is a Gastroenterologist in Columbia, Maryland. Dr. Crosse is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Hiatal Hernia, Congenital Diaphragmatic Hernia, Colonoscopy, and Endoscopy.

Sanam Razeghi is a Gastroenterologist in Laurel, Maryland. Dr. Razeghi is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Trichohepatoenteric Syndrome, Diarrhea, Childhood Volvulus, Endoscopy, and Colonoscopy.

Grice Mcmullan is a Gastroenterologist in Laurel, Maryland. Dr. Mcmullan is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Heartburn, Gas Bloat Syndrome, Ascites, Gastrectomy, and Colonoscopy.

Sean Karp is a Gastroenterologist in Columbia, Maryland. Dr. Karp is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Diverticular Disease, Irritable Bowel Syndrome (IBS), Familial Adenomatous Polyposis, and Endoscopy.

Marvin Lawrence is a Gastroenterologist in Columbia, Maryland. Dr. Lawrence is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Berdon Syndrome, Diverticular Disease, and Endoscopy.

Dr. Rai was awarded the “TOP DOC” in Gastroenterology award by Baltimore Magazine for 2016. Dr. Rai is a Gastroenterologist & Hepatologist, with over 22 years of experience in this field. He is the Medical Director of Gastro Center of Maryland & Cascades Endoscopy Center and has served on the Medical Faculty at Johns Hopkins University School of Medicine for many years, starting in 1997. He has been in many leadership positions in the Johns Hopkins Division of Gastroenterology & Hepatology, including as the Medical Director, Adult Liver Transplantation and Director, Clinical Effectiveness. He completed his Gastroenterology & Hepatology Fellowship at Johns Hopkins University in 1996 and completed an additional year of Advanced Fellowship at Johns Hopkins University in Transplant Hepatology and Biliary Disorders. Dr. Rai is considered a national thought leader and expert in the field of Gastroenterology and Liver disease and presents regularly at national and regional meetings. He has received many awards including Excellence in Clinical Research Award from the American College of Gastroenterology, Passano Clinician Scientist Award from Johns Hopkins University, Industry Research Scholar Award & Astra-Merck Award from the American Digestive Health Foundation, among others. He has published dozens of scholarly articles in peer-reviewed journals and authored many chapters for medical textbooks. He has performed over 50,000 procedures in this field and pioneered new and innovative medical techniques. Dr. Rai is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Crohn's Disease, Gastric Dysmotility, Colitis, Colonoscopy, and Gastrectomy.

Priti Bijpuria is a Gastroenterologist in Columbia, Maryland. Dr. Bijpuria is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Gastric Dysmotility, Bacterial Gastroenteritis, Indigestion, Gastroesophageal Reflux Disease (GERD), and Gastrectomy.

Preston Kim is a Gastroenterologist in Columbia, Maryland. Dr. Kim is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gas Bloat Syndrome, Lactose Intolerance, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.

Richard Andorsky is a Gastroenterologist in Columbia, Maryland. Dr. Andorsky is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Crohn's Disease, Painful Swallowing, Endoscopy, and Gastrectomy.

Biju Alex is a Gastroenterologist in Columbia, Maryland. Dr. Alex is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Colitis, Viral Gastroenteritis, Portal Hypertension, Gastrectomy, and Endoscopy.

The goal of Grishma Joy, M.D. is having clear communication with each patient. She makes sure her patients know what she is thinking and where she would like to go with their care. She makes a point to actively speak with primary care doctors and exchange emails regularly, so everyone is on the same page. Open and honest communication helps in providing quality care and satisfied patients. Learn more at www.ddamd.com. Dr. Joy is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Colitis, Familial Adenomatous Polyposis, Turcot Syndrome, Gastrectomy, and Endoscopy.

Dr. Lee is a graduate of the accelerated. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Laryngitis, Otitis, Sinusitis, and Ruptured Eardrum.

Kaveh Sadeghi is a primary care provider, practicing in Family Medicine and Internal Medicine in Laurel, Maryland. Dr. Sadeghi is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Hypertensive Heart Disease, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension. Dr. Sadeghi is currently accepting new patients.

Dr. Gulshan Nazir is a highly skilled and compassionate board-certified Family Medicine physician with over 30 years of experience in healthcare. She graduated in 1984 from Kashmir, India, and pursued specialty training and practice in Kashmir and England before completing her residency at Bronx-Lebanon Hospital Center in 1998. During her residency, Dr. Nazir served as Chief Resident, showcasing her leadership and commitment to excellence in patient care.With extensive experience in OB/GYN and women’s health, Dr. Nazir has dedicated her career to providing comprehensive care for individuals of all ages. She worked as a primary care physician in Jamestown, NY, for seven years before moving to Maryland in 2006. Since then, she has been a full-time family practitioner, delivering compassionate and personalized care to the communities of Laurel and Columbia, MD.Dr. Nazir’s dedication to offering the best primary care in Laurel and Columbia has earned her the trust and respect of her patients. Her expertise spans preventive care, chronic disease management, and women’s health, making her an integral part of the Padder Health Services Healthcare team. Dr. Nazir is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Obesity, Vitamin D Deficiency, Type 2 Diabetes (T2D), and Sinusitis.

Sara Romani is a board-certified Physician Assistant with a unique background in both research and clinical care. She earned her PhD in Microbiology in 2018, followed by post-doctoral medical research at the University of Maryland School of Medicine. Driven by a passion for patient care, Sara completed her Master’s in Physician Assistant Studies at Hofstra University, NY, in 2023.In 2024, Sara joined Padder Health Services, a leading Healthcare provider of Primary Care and Cardiology in Laurel, Columbia, and Hagerstown, MD. Fluent in Farsi and English, she is dedicated to delivering compassionate, patient-centered care to diverse communities. Sara’s expertise and commitment align with Padder Health Services' mission to provide exceptional healthcare. Dr. Romani is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Vitamin D Deficiency, Hypertension, Obesity, and Type 2 Diabetes (T2D).

Samantha Frazier, PA-C is a highly skilled and compassionate board-certified Physician Assistant at Padder Health Services, dedicated to providing exceptional primary care. She earned her Bachelor of Science in Biology in 2008 and pursued her Master’s in Physician Assistant Studies at Shenandoah University, Winchester, in 2014.As a licensed Physician Assistant in Maryland, Samantha brings years of expertise in evaluating, diagnosing, and treating patients, including full prescriptive authority. She is deeply committed to addressing the unique needs of patients with chronic medical conditions, focusing on personalized, patient-centered care to improve overall health outcomes.At Padder Health Services, located in Laurel, Columbia, and Hagerstown, MD, Samantha works alongside an expert team to deliver high-quality healthcare. Her dedication to her patients' well-being aligns with the practice’s mission to provide the best in primary care. Ms. Frazier is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Hypertension, Osteoarthritis, COVID-19, and Type 2 Diabetes (T2D).

Stephen Humm is a Gastroenterologist in Laurel, Maryland. Dr. Humm is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastric Dysmotility, Gas Bloat Syndrome, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Colonoscopy.