The 20 Best Gastric Bypass Doctors near Danville, PA

Find the Experts and Specialists who perform Gastric Bypass

Last Updated: 04/28/2026

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MediFind found 14 doctor with experience in Gastric Bypass near Danville, PA. Of these, 6 are Experienced, 4 are Advanced, 2 are Distinguished and 2 are Elite.

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14 providers found
    Elite in Gastric Bypass
    General Surgery | Bariatric Medicine
    Elite in Gastric Bypass
    General Surgery | Bariatric Medicine

    Geisinger Medical Center - General Surgery

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Anthony T. Petrick, MD, FACS, FASMBS, is a board-certified general surgeon specializing in esophageal and bariatric surgery. Dr. Petrick performs a number of advanced and specialized surgical procedures including advanced endoscopy, revisional bariatric surgery, laparoscopic gastric band (or “lap band”), gastric bypass, biliopancreatic diversion with duodenal switch and gastric sleeve. He also treats people for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal and paraesophageal hernia, achalasia and acid reflux (GERD).|Board-certified in general surgery, Dr. Petrick earned his medical degree from Georgetown University in Washington, D.C. He completed general surgery residency at Georgetown University Medical Center in Washington, D.C. He then completed a fellowships in Surgical Oncology at and Beth Israel Deaconess Medical Center in Boston and in Bariatric and Foregut surgery at the University of Pittsburgh Medical Center.|For the past 18 years, Dr. Petrick served as program director for the Geisinger bariatric and foregut surgical fellowship. He now serves as associate program director, acting as a mentor to bariatric surgery fellows. Dr. Petrick has a strong commitment to research in bariatric and foregut surgery and has authored more than 100 articles. Currently, he serves as chief quality officer for inpatient services at Geisinger and Director of the Division of Bariatric and Foregut surgery.|Dr. Petrick is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons. He chairs to Data and Quality Committee for the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program and also serves as an editorial board member for the journal Surgical and Obesity-Related Diseases and a columnist for Bariatric Times.|In his free time, Dr. Petrick serves on the board of education at St. Joseph School in Danville. He also coaches the Susquehanna Valley Stampede varsity and junior varsity ice hockey teams.|Clinical Focus: Bariatric Surgery|If you’re a provider who’d like to refer a patient, call our 24/7 referral line at 800-332-8901 or visit www.emr-link.com. Dr. Petrick is rated as an Elite provider by MediFind in Gastric Bypass. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Obesity, Hiatal Hernia, Hernia, Gastric Bypass, and Endoscopy. Dr. Petrick is currently accepting new patients.

    Elite in Gastric Bypass
    Gastroenterology
    Elite in Gastric Bypass
    Gastroenterology

    Geisinger Medical Center - GI Nutrition

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Still is a board-certified and fellowship-trained specialist in nutrition and weight management. His clinical and research interests include malnutrition and comprehensive weight management. Dr. Still obtained his medical degree from the Philadelphia College of Osteopathic Medicine. He completed his residency and a fellowship in clinical nutrition at Geisinger Medical Center. Dr. Still is certified by the American Board of Internal Medicine.|Are weight loss medications right for you? Learn more from Dr. Still. Dr. Still is rated as an Elite provider by MediFind in Gastric Bypass. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Obesity, Malnutrition, Small Bowel Bacterial Overgrowth, Gastric Bypass, and Vagotomy. Dr. Still is board certified in The American Board Of Internal Medicine.

    Distinguished in Gastric Bypass
    Bariatric Medicine | General Surgery
    Distinguished in Gastric Bypass
    Bariatric Medicine | General Surgery

    Geisinger Medical Center - General Surgery

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    David M. Parker, MD, FACS, FASMBS, is a board-certified general surgeon specializing in bariatric surgery for both adolescents and adults. Dr. Parker performs several advanced and specialized surgical procedures, including gastric bypass, biliopancreatic diversion with duodenal switch, revisional bariatric surgery, laparoscopic gastric band (or “lap band”) and gastric sleeve. He also provides care for various conditions affecting the stomach and gastrointestinal (GI) system, including hiatal hernia, paraesophageal hernia, achalasia and acid reflux.|He has a clinical interest in minimally invasive laparoscopic and robotic surgery.|Board-certified in general surgery, Dr. Parker earned his medical degree from West Virginia University in Morgantown. He completed a general surgery residency at the Dwight D. Eisenhower Army Medical Center in Fort Gordon, GA, followed by a fellowship in bariatric and foregut surgery at Geisinger Medical Center in Danville.|While in medical school, he received the Presidential Award for Excellence in Scholarship. During his fellowship, he received the SAGES Award for best fellow presentation.|Dr. Parker serves as program director for the Geisinger bariatric and foregut surgical fellowship. He has a strong commitment to research in bariatric and foregut surgery and has authored more than 24 published articles.|He is an active member of the Society of Gastrointestinal and Endoscopic Surgeons and a fellow of the American College of Surgeons and American Society of Metabolic and Bariatric Surgeons.|Dr. Parker has served in the United States Army and continues to serve as a lieutenant colonel in the United States Army Reserve. He is also a football enthusiast, rooting for the West Virginia Mountaineers in his free time. Dr. Parker is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Obesity, Gastric Bypass, and Endoscopy. Dr. Parker is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Gastric Bypass
    Bariatric Medicine | General Surgery
    Advanced in Gastric Bypass
    Bariatric Medicine | General Surgery

    Geisinger Medical Center - General Surgery

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English, Croatian
    Accepting New Patients

    Vladan Obradovic, MD, is a general surgeon specializing in bariatric surgery. Dr. Obradovic performs a number of advanced and specialized weight loss surgery procedures, including biliopancreatic diversion with duodenal switch, advanced endoscopy, revisional bariatric surgery, foregut surgery, laparoscopic gastric band (or “lap band”), gastric bypass and gastric sleeve.|Dr. Obradovic has a clinical interest in minimally invasive and robotic surgery.|Dr. Obradovic earned his medical degree from the University of Belgrade School of Medicine in Belgrade, Serbia. He completed residencies in general surgery at the Belgrade School of Medicine, and Health Centre Krusevac in Krusevac, Serbia, and digestive system and hepatobiliary surgery at the University Clinical Center of Belgrade. He then completed general surgery residency and fellowship in bariatric surgery at Geisinger Medical Center in Danville and a certification in robotic assisted surgery at Intuitive Surgical Headquarters in Sunnyvale, CA.|A resident of Danville, Dr. Obradovic is committed to serving his community by giving the best care he possibly can. He was inspired to pursue a career in medicine by his father, who was a physician.|In his spare time, he enjoys spending time with his family and friends and walking his dog. Dr. Obradovic is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Obesity, Hernia, Gastric Bypass, and Endoscopy. Dr. Obradovic is currently accepting new patients.

    Advanced in Gastric Bypass
    Bariatric Medicine | Gastroenterology
    Advanced in Gastric Bypass
    Bariatric Medicine | Gastroenterology

    Geisinger Medical Center - Gastroenterology

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English, Gujarati , Hindi
    Accepting New Patients
    Offers Telehealth

    Harshit S. Khara, MD, is an Interventional Gastroenterologist based at Geisinger Medical Center in Danville, PA.|Dr. Khara is an Associate Professor of Medicine at the Geisinger Commonwealth School of Medicine. He serves as the Director of Endoscopy; System Director of Interventional Endoscopy, Director of Endoscopic and Translational Research; Director of the Clinical Use Evaluation Committee; and System Director of Quality & Innovation. He is also the Research Director and Core faculty for the Gastroenterology Fellowship Program, as well as the Program Director for the Advanced Therapeutic Endoscopy Fellowship Program at the Center for Advanced Therapeutic Endoscopy at Geisinger, participating in the training and mentoring of advanced endoscopy and general gastroenterology fellows. Dr. Khara is also the Director of the National Pancreas Foundation Center at Geisinger.|He is involved in multi-center clinical research and quality improvement projects. Dr. Khara's clinical and research interests are in the field of interventional endoscopic ultrasound, ERCP, Barrett’s esophagus, third space endoscopy, endoscopic treatments for GERD, interventional EndoHepatology, and bariatric interventional endoscopy.|Dr. Khara earned his medical degree from Seth G.S. Medical College & K.E.M. Hospital in India then completed his Internal Medicine Residency at Drexel University College of Medicine-Saint Peter's University Hospital. He completed a Fellowship in Transplant Hepatology at the University of Nebraska Medical Center, a Fellowship in Gastroenterology at Yale University School of Medicine-Norwalk Hospital and a Fellowship in Advanced Therapeutic Endoscopy at Geisinger Medical Center.|Dr. Khara is certified in Gastroenterology by the American Board of Internal Medicine. Dr. Khara is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Pancreatic Pseudocyst, Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Endoscopy, and Gastric Bypass. Dr. Khara is currently accepting new patients.

    Advanced in Gastric Bypass
    Gastroenterology
    Advanced in Gastric Bypass
    Gastroenterology

    Geisinger Medical Center - Gastroenterology

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English

    Dr. Diehl is a board-certified and fellowship-trained gastroenterologist. His clinical interests include endoscopic ultrasound, endoscopic retrograde cholangiopancreatography (ERCP) and innovative advanced therapeutic endoscopy. Dr. Diehl obtained his medical degree from the University of California, Los Angeles. He completed his residency at Harbor-UCLA Medical Center and his fellowships in gastroenterology at the University of California, San Francisco Medical Center and the University of California, Los Angeles Medical Center. Dr. Diehl is certified by the American Board of Internal Medicine. In his free time, Dr. Diehl enjoys spending time with his family and exercising, particularly swimming. He also has an appreciation for old cars. Dr. Diehl is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Gallbladder Disease, Watermelon Stomach, Endoscopy, and Gallbladder Removal. Dr. Diehl is board certified in The American Board Of Internal Medicine.

    Advanced in Gastric Bypass
    Gastroenterology
    Advanced in Gastric Bypass
    Gastroenterology

    GMC Gastroenterology/Nutrition

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Dr. Confer is a board-certified and fellowship-trained gastroenterologist. His clinical interests include endoscopic ultrasound and endoscopic retrograde cholangiopancreatography (ERCP). Dr. Confer attended the Lake Erie College of Osteopathic Medicine, where he received his medical degree. He completed his residency, a fellowship in gastroenterology and hepatology, and a fellowship in advanced therapeutic endoscopy at the Cleveland Clinic Foundation. Dr. Confer is certified by the American Board of Internal Medicine in gastroenterology. Dr. Confer is rated as an Advanced provider by MediFind in Gastric Bypass. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Gallbladder Disease, Benign Esophageal Stricture, Cholecystitis, Endoscopy, and Gallbladder Removal. Dr. Confer is board certified in The American Board Of Internal Medicine In Gastroenterology. Dr. Confer is currently accepting new patients.

    Experienced in Gastric Bypass
    Experienced in Gastric Bypass

    GMC General Diagnostic Radiology

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English

    Dr. Collins is a board-certified radiologist. He earned his medical degree from Marshall University, and completed his residency at Geisinger Medical Center. Dr. Collins is certified by the American Board of Radiology. Dr. Collins is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Lung Nodules, Lymphofollicular Hyperplasia, Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET), Neuroendocrine Tumor, and Gastric Bypass. Dr. Collins is board certified in The American Board Of Radiology.

    Experienced in Gastric Bypass
    Palliative Medicine
    Experienced in Gastric Bypass
    Palliative Medicine

    Geisinger At Home - Central Region

    9 Stearns Lane, 
    Danville, PA 
     (2.5 miles away)
    Languages Spoken:
    English

    Halle Ellison, MD, is a dually trained general surgeon and palliative care physician. Board-certified in general surgery, Dr. Ellison is focused on improving the quality of life for those she treats. She also specializes in providing end-of-life care for adults with terminal illnesses, attending to their emotional and physical well-being and helping to manage their symptoms. Dr. Ellison also offers guidance and support to her patients’ families.|She has a clinical interest in end of life care, medical education and improving healthcare delivery.|Dr. Ellison earned her medical degree from Ross University School of Medicine in Dominica. She completed her residency in general surgery and a fellowship in palliative medicine, both at Geisinger Medical Center in Danville.|In 2018, Dr. Ellison was awarded the Top Patient’s Experience Clinician Award for her dedication to providing compassionate care to her patients and their families. Dr. Ellison is rated as an Experienced provider by MediFind in Gastric Bypass. Her clinical expertise encompasses Gallstones, Choledocholithiasis, Gallbladder Disease, Gastroesophageal Reflux Disease (GERD), and Gastric Bypass.

    Experienced in Gastric Bypass
    Experienced in Gastric Bypass

    GMC General Diagnostic Radiology

    100 North Academy Avenue, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English

    Romeo Laroya is a Radiologist practicing medicine in Danville, Pennsylvania. Dr. Laroya is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Mantle Cell Lymphoma (MCL), Ureterocele, Boils, Carbuncle, and Gastric Bypass.

    Experienced in Gastric Bypass
    Internal Medicine
    Experienced in Gastric Bypass
    Internal Medicine

    Geisinger Danville - General Internal Medicine

    35 Justin Drive, Floor 4, 
    Danville, PA 
     (2.5 miles away)
    Languages Spoken:
    English, Hindi
    Offers Telehealth

    David Rolston, MD, is chair of the Department of Medicine Specialties for the Medicine Institute and director of the Division of General Internal Medicine at Geisinger Medical Center in Danville.|Dr. Rolston received his medical training and degree at the Christian Medical College, Vellore, University of Madras, India. He completed his residency at Hahnemann University Hospital in Philadelphia, and was chief medical resident at Hahnemann and at Crozer Chester Medical Center in Pennsylvania. He was elected to the Alpha Omega Alpha Honor Medical Society. After his residency, he was an attending physician and codirector of the internal medicine residency program at Graduate Hospital in Philadelphia. Dr. Rolston then became a staff physician at the Cleveland Clinic, Cleveland, Ohio, where he served as director of the Internal Medicine A91 Clinic, associate program director of the residency program in internal medicine, director of the physical diagnosis curriculum at the Cleveland Clinic Lerner College of Medicine and deputy editor of the Cleveland Clinic Journal of Medicine. He served as treasurer/secretary of the Ohio branch of the American College of Physicians. At Geisinger, he serves on several institutional committees and is part of the governing body for MyCode®.|Dr. Rolston is an editor and reviewer for national and international scientific journals and has published more than 150 manuscripts, abstracts and book chapters. He was the recipient of the prestigious Wellcome Trust Fellowship and has received numerous awards for research and teaching. He has been selected for Best Doctors in America.|Dr. Rolston’s areas of clinical interest include taking care of patients with complex medical problems. His research interests include intestinal water and electrolyte transport, intestinal-related infectious diseases and clinical and basic research as it relates to obesity. Dr. Rolston is rated as an Experienced provider by MediFind in Gastric Bypass. His clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Spinal Muscular Atrophy (SMA), Spinal Muscular Atrophy Type 3, and Gastric Bypass.

    Experienced in Gastric Bypass
    Experienced in Gastric Bypass
    100 N Academy Ave, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English

    Voranaddha Vacharathit is a General Surgeon practicing medicine in Danville, Pennsylvania. Dr. Vacharathit is rated as an Experienced provider by MediFind in Gastric Bypass. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Hernia, Gastroesophageal Reflux Disease (GERD), Congenital Diaphragmatic Hernia, Gallbladder Removal, and Gastric Bypass.

    Experienced in Gastric Bypass
    Experienced in Gastric Bypass

    Select Specialty Hospital-Danville

    100 N Academy Ave, 
    Danville, PA 
     (0.5 miles away)
    Languages Spoken:
    English

    Tossapol Kerdsirichairat is a Gastroenterologist practicing medicine in Danville, Pennsylvania. Dr. Kerdsirichairat is rated as an Experienced provider by MediFind in Gastric Bypass. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Sclerosing Mesenteritis, Hereditary Pancreatitis, Acute Pancreatitis, Endoscopy, and Vagotomy.

    Distinguished in Gastric Bypass
    General Surgery | Bariatric Medicine
    Distinguished in Gastric Bypass
    General Surgery | Bariatric Medicine

    WellSpan Bariatric Surgery In Lewisburg

    25 Lystra Rogers Drive, 
    Lewisburg, PA 
     (14.6 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English
    Accepting New Patients

    Jon Gabrielsen is a General Surgeon and a Bariatric Medicine provider practicing medicine in Lewisburg, Pennsylvania. He has been practicing medicine for over 28 years. Dr. Gabrielsen is rated as a Distinguished provider by MediFind in Gastric Bypass. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Achalasia, Gastric Bypass, and Endoscopy. Dr. Gabrielsen is currently accepting new patients.

    Showing 1-14 of 14

    Last Updated: 04/28/2026

    What is the definition of Gastric Bypass?

    Gastric bypass is surgery that helps you lose weight by changing how your stomach and small intestine handle the food you eat.

    After the surgery, your stomach will be smaller. You will feel full with less food.

    Also, the food you eat will no longer go into some parts of your small intestine that absorb the nutrients in food. Because of this, your body will not get all of the calories from the food you eat.

    When should I see a Gastric Bypass doctor near Danville, PA?

    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 Gastric Bypass doctor near Danville, PA?

    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 Gastric Bypass doctors near Danville, PA?

    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 Gastric Bypass doctors near Danville, PA?

    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 Gastric Bypass doctor near Danville, PA?

    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 Gastric Bypass doctor search results page. 

    Why is it important to get a second opinion from a different Gastric Bypass 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 Gastric Bypass doctor near Danville, PA?

    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 Gastric Bypass 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 Gastric Bypass 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 Gastric Bypass doctors near Danville, PA?

    Look for the filter feature on the left side of the Gastric Bypass 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 Gastric Bypass doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastric Bypass 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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