The 20 Best Endoscopy Doctors near Lewisburg, PA
Find the Experts and Specialists who perform Endoscopy
Geisinger Medical Center - Gastroenterology
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 Elite provider by MediFind in Endoscopy. 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.
Geisinger Medical Center - Gastroenterology
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 Elite provider by MediFind in Endoscopy. 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.
WellSpan Bariatric Surgery In Lewisburg
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 an Advanced provider by MediFind in Endoscopy. 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.
GMC Gastroenterology/Nutrition
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 a Distinguished provider by MediFind in Endoscopy. 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.
Geisinger Medical Center - General Surgery
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 a Distinguished provider by MediFind in Endoscopy. 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.
Geisinger Medical Center - General Surgery
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 Endoscopy. 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.
WellSpan Digestive Health At Medical Park Drive
Gregory Enders is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. He has been practicing medicine for over 38 years. Dr. Enders is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Colitis, Chronic Erosive Gastritis, Colonoscopy, and Gastrectomy. Dr. Enders is board certified in American Board Of Internal Medicine, Gastroenterology - 1993. Dr. Enders is currently accepting new patients.
WellSpan Digestive Health At Medical Park Drive
Nicholas Inverso is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. Dr. Inverso is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Hypochondrogenesis, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrectomy.
WellSpan Digestive Health At Medical Park Drive
David Talabiska is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. Dr. Talabiska is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Esophagitis, Turcot Syndrome, Endoscopy, and Gastrectomy.
Cpgi Endoscopy Center LLC
Vladimir Petorak is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. Dr. Petorak is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Colorectal Cancer, Familial Colorectal Cancer, Gastrectomy, and Endoscopy.
Cpgi Endoscopy Center LLC
Joseph Gallagher is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. Dr. Gallagher is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Colonoscopy, and Endoscopy.
WellSpan Digestive Health At Medical Park Drive
Mohamed Eisa is a Gastroenterologist practicing medicine in Lewisburg, Pennsylvania. Dr. Eisa is rated as an Experienced provider by MediFind in Endoscopy. His clinical expertise encompasses Esophageal Perforation, Gastroesophageal Reflux Disease (GERD), Schizoaffective Disorder, Gastrostomy, and Endoscopy.
WellSpan Palliative And Supportive Care In Lewisburg
Kathryn Giorgini is a Pediatrics provider practicing medicine in Lewisburg, Pennsylvania. Dr. Giorgini is rated as an Experienced provider by MediFind in Endoscopy. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Opioid Induced Constipation, Heart Failure with Preserved Ejection Fraction (HFpEF), ALK-Positive Non-Small Cell Lung Cancer, Pacemaker Implantation, and Ureteroscopy.
GMC Gastroenterology/Nutrition
Amitpal Singh Johal, MD, is a board-certified and fellowship-trained gastroenterologist, also known as a GI doctor. He has a special interest in endoscopic ultrasound, a minimally invasive procedure used to evaluate and diagnose digestive diseases.|Dr. Johal earned his medical degree from the Medical College of Wisconsin. He completed his residency in internal medicine at University Hospitals Case Medical Center in Cleveland and his fellowship in gastroenterology at Geisinger Medical Center.|Dr. Johal is certified by the American Board of Internal Medicine in gastroenterology. Dr. Johal is rated as an Advanced provider by MediFind in Endoscopy. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Nonalcoholic Steatohepatitis (NASH), Benign Esophageal Stricture, Lower Esophageal Ring, Endoscopy, and Colonoscopy. Dr. Johal is board certified in The American Board Of Internal Medicine In Gastroenterology.
Geisinger Medical Center - Gastroenterology
Dr. Shellenberger is a board-certified and fellowship-trained gastroenterologist. His clinical interests include postgraduate medical education, esophageal motility and other GI laboratory procedures. Dr. Shellenberger earned his medical degree from the Philadelphia College of Osteopathic Medicine. He completed his residency and his fellowship in gastroenterology at Geisinger Medical Center. Dr. Shellenberger is certified by the American Board of Internal Medicine in internal medicine and gastroenterology. Dr. Shellenberger is rated as an Advanced provider by MediFind in Endoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Crohn's Disease, Angiodysplasia of the Colon, Swallowing Difficulty, Endoscopy, and Colonoscopy. Dr. Shellenberger is board certified in The American Board Of Internal Medicine In Internal Medicine And Gastroenterology. Dr. Shellenberger is currently accepting new patients.
Geisinger Medical Center - General Surgery
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 Endoscopy. 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.
Geisinger Medical Center - Gastroenterology
Danial Shaikh, MD, is an accomplished interventional gastroenterologist specializing in luminal interventions and advanced therapeutic endoscopy. He completed his medical education at Ziauddin University in Karachi, Pakistan, followed by an internal medicine residency and a gastroenterology fellowship at BronxCare Health System, Icahn School of Medicine at Mount Sinai in New York, where he also served as chief resident and chief fellow.|Dr. Shaikh further honed his skills during an advanced endoscopy fellowship at Moffitt Cancer Center, University of South Florida, and later at the Mayo Clinic in Arizona, where he focused on third space endoscopy. His board certifications include gastroenterology and internal medicine.|Fluent in both English and Urdu, Dr. Shaikh has clinical and research interests primarily in third space endoscopy and gastrointestinal oncology. His dedication to advancing the field of endoscopy through patient care, research and education has established him as a respected figure in his specialty. Dr. Shaikh is rated as an Advanced provider by MediFind in Endoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Toxic Megacolon, Saddle Pulmonary Embolism, Ascites, Endoscopy, and Colonoscopy.
Geisinger Medical Center - Gastroenterology
Dr. Yuasa is a board-certified and fellowship-trained gastroenterologist. His clinical interests include general gastroenterology and inflammatory bowel disease. Dr. Yuasa earned his medical degree from Rutgers, the State University of New Jersey. He completed his residency at Temple University Hospital and his fellowship in gastroenterology at Memorial Sloan-Kettering Cancer Center. Dr. Yuasa is certified by the American Board of Internal Medicine in gastroenterology. Dr. Yuasa is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Esophagitis, Ulcerative Colitis, Crohn's Disease, Endoscopy, and Colonoscopy. Dr. Yuasa is board certified in The American Board Of Internal Medicine In Gastroenterology. Dr. Yuasa is currently accepting new patients.
Geisinger Medical Center - Cardiology
As an interventional cardiologist, Dr. Shikhar Agarwal specializes in treating valvular and structural heart disease in adults.|Dr. Agarwal earned his medical degree from the All India Institute of Medical Sciences in India and completed his residency at the Cleveland Clinic. He also completed fellowships in cardiovascular disease, interventional cardiology and structural intervention at the Cleveland Clinic.|He is experienced in performing a variety of cardiac procedures, including transcatheter aortic valve replacement (TAVR) and mitral valve repair (Mitraclip), as well as the implantation of Watchman devices for the treatment of atrial fibrillation.|Dr. Agarwal currently leads the structural heart disease program at Geisinger Medical Center in Danville. Under his leadership, he has grown the program and improved outcomes for those under his care. He helped lead the construction of a state-of-the-art hybrid operating room, one of the largest of its kind in the country.|Dr. Agarwal has been honored for early-career success by being recognized among the Pennsylvania Medical Society’s (PAMED) Top Physicians Under 40. His dedication to protecting the hearts of everyone he treats led his colleagues to nominate him for this prestigious award.|In addition to performing a variety of complex cardiac procedures, Dr. Agarwal is dedicated to expanding cardiac care to people in rural areas of Pennsylvania. Dr. Agarwal is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Aortic Valve Stenosis, Patent Foramen Ovale, Atrial Fibrillation, Aortic Valve Replacement, and Transcatheter Aortic Valve Replacement (TAVR). Dr. Agarwal is currently accepting new patients.
GMC Gastroenterology/Nutrition
Dr. Unzueta is a board-certified and fellowship-trained gastroenterologist. His clinical interests include liver disease and liver transplantation. Dr. Unzueta earned his medical degree at the Universidad de la Salle Facultad Mexicana de Medicina. He completed a residency at Geisinger Medical Center and his fellowship in transplant hepatology at the University of Florida. He is certified by the American Board of Internal Medicine. Dr. Unzueta speaks English and Spanish. Dr. Unzueta is rated as an Experienced provider by MediFind in Endoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Nonalcoholic Steatohepatitis (NASH), Visceromegaly, Hepatitis, Endoscopy, and Liver Transplant. Dr. Unzueta is board certified in The American Board Of Internal Medicine. Dr. Unzueta is currently accepting new patients.
Last Updated: 04/28/2026













