25 of the Best Gastroenterologists Near Me in orange, CA

Dr. Jason Samarasena is a UCI Health physician who specializes in treating gastrointestinal disorders, including gastroesophageal reflux disease, esophageal disease, pancreatic cysts, biliary tract disorders, gastric intestinal metaplasia and colorectal cancer.His research interests include advanced endoscopic imaging, characterization and treatment of pancreatic cysts, confocal laser endomicroscopy, bowel preparation before colonoscopy, endoscopic mucosal resection and endoscopic submucosal dissection.Samarasena received his medical degree from Memorial University of Newfoundland, Canada, where he graduated on the Dean’s List. He completed both general gastroenterology and interventional endoscopy fellowships at UC Irvine.Press Ganey has named Samarasena as one of the top five physicians for patient satisfaction in the ambulatory surgery group at UCI Health. He was named the 2016 Teaching Attending of the Year by the UC Irvine Gastroenterology Fellowship. He is the current president of the Orange County GI Society.Nickname: Dr. Sam. Dr. Samarasena is highly rated in 50 conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy. Dr. Samarasena is board certified in American Board Of Internal Medicine - Gastroenterology.

Kenneth Chang is a Gastroenterologist practicing medicine in Orange, California. Dr. Chang is highly rated in 10 conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Endoscopy, and Colonoscopy.

Hardeep Singh is a Gastroenterologist practicing medicine in Orange, California. Dr. Singh is highly rated in 44 conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Esophageal Varices, Familial Pancreatic Cancer, Gastrostomy, and Gastrectomy. Dr. Singh is board certified in American Board Of Internal Medicine. Dr. Singh is currently accepting new patients.

James Lee is a Gastroenterologist practicing medicine in Orange, California. Dr. Lee is highly rated in 23 conditions, according to our data. His clinical expertise encompasses Gas Bloat Syndrome, Familial Adenomatous Polyposis, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy. Dr. Lee is board certified in American Board Of Internal Medicine. Dr. Lee is currently accepting new patients.

Mohammad Elbatta is a Gastroenterologist practicing medicine in Tustin, California. Dr. Elbatta is highly rated in 3 conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Endoscopy, and Gastrectomy. Dr. Elbatta is board certified in American Board Of Internal Medicine. Dr. Elbatta is currently accepting new patients.

Dr. John G. Lee is a UCI Health gastroenterologist who specializes in the diagnosis and treatment of disorders of the pancreas and biliary tract using minimally invasive techniques, including interventional endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP).Lee also is skilled in the treatment of gastrointestinal bleeding and the removal of difficult and large colonic polyps. He is involved in the research of outcomes of gastrointestinal endoscopy and is the author of numerous publications.Lee earned his medical degree from the University of Miami’s Miller School of Medicine in Miami, Fla. He completed an internship in internal medicine at Jackson Memorial Hospital in Miami, followed by an internal medicine residency at Wadsworth VA Medical Center in Los Angeles. He completed a fellowship in gastroenterology at Duke University School of Medicine in Durham, N.C. Before coming to UC Irvine Medical Center, he was an associate professor at UC Davis School of Medicine.Although Dr. Lee's primary patient base is adult, he performs endoscopic retrograde cholangiopancreatography (ECRP) on pediatric patients. Dr. Lee is highly rated in 45 conditions, according to our data. His clinical expertise encompasses Jaundice, Cholestasis, Bile Duct Stricture, Endoscopy, and Pancreatectomy. Dr. Lee is board certified in American Board Of Internal Medicine - Gastroenterology.

Dr. Beshoy T. Yanny is a board-certified UCI Health hepatologist who specializes in general and transplant hepatology and focuses on treating patients with a wide spectrum of liver disorders. He cares for patients with liver cirrhosis and its spectrum of complications. He also cares for patients before and after liver transplantation. His research interests include autoimmune liver disease, primary biliary cholangitis, steatohepatitis, hepatocellular carcinoma and viral hepatitis B and C.Yanny completed his internal medicine residency at Keck School of Medicine of USC. Following his internal medicine training, he served as the inaugural transplant hepatology hospitalist at Kaiser Permanente, Los Angeles Medical Center for one year. He completed his gastroenterology and hepatology fellowship at Kaiser Permanente, Los Angeles Medical Center. Yanny moved to UCLA as the inaugural transplant hepatology fellow, where he completed his training. Following liver transplant fellowship, he established the general and transplant hepatology program at UCLA Santa Monica campus and community offices. He served as the inaugural program leader from 2018-2026.Yanny now serves as the Associate Director of Hepatology at UC Irvine School of Medicine. He is board certified in internal medicine, gastroenterology and transplant hepatology. He has published and presented research at multiple national and international societies including AASLD, EASL, GUILD and DDW. Dr. Yanny is highly rated in 15 conditions, according to our data. His clinical expertise encompasses Hepatitis, Cirrhosis, Visceromegaly, Liver Transplant, and Liver Embolization. Dr. Yanny is board certified in American Board Of Internal Medicine - Transplant Hepatology, American Board Of Internal Medicine - Gastroenterology, and American Board Of Internal Medicine - Internal Medicine.

Dr. Robert H. Lee is a board-certified UCI Health gastroenterologist who specializes in swallowing disorders, gastroparesis and the management of gastroesophageal reflux disease (GERD).His clinical interests include esophageal disorders and esophageal cancer, as well as reflux disorders. He also is interested in outcomes-based research.Lee earned his medical degree from the University of Michigan Medical School in Ann Arbor, Mich., where he also completed an internship and residency in internal medicine. He went on to complete a fellowship in gastroenterology at UC San Diego School of Medicine, where he also received a master’s degree in clinical research. Dr. Lee is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Congenital Diaphragmatic Hernia, Gastroesophageal Reflux Disease (GERD), Colonoscopy, and Endoscopy. Dr. Lee is board certified in American Board Of Internal Medicine - Gastroenterology.

Dr. Nimisha K. Parekh is a board-certified UCI Health gastroenterologist who directs the UCI Health Inflammatory Bowel Disease (IBD) Program. A specialist in the treatment of inflammatory and irritable bowel diseases, she takes an integrated approach to helping patients manage their condition.Parekh earned a medical degree from Tulane University School of Medicine in New Orleans, and completed an internship and residency in internal medicine at Tulane Medical Center Hospital. She also completed a fellowship in gastroenterology and hepatology at the University of Texas Southwestern Medical School in Dallas, Tex., followed by advanced training in the treatment of inflammatory bowel disease at the University of Chicago Department of Medicine.Her research interests include outcomes in Crohn’s disease and ulcerative colitis, clinical trials for new drug therapies to treat IBD, women’s issues and the role of ethnicity in disease outcomes. She also is actively involved in the training of GI fellows, residents and medical students. She received the Outstanding Teacher Award from the gastroenterology fellows in 2009 and has been fellowship program director since 2011. She also serves as the School of Medicine's associate dean of faculty development.Parekh is co-director of the Crohn's and Colitis Foundation of America-Orange County Chapter. She also is a member of the American College of Gastroenterology, the American Gastroenterology Association, the American Society of Gastrointestinal Endoscopy and the Crohn's and Colitis Foundation of America. Dr. Parekh is highly rated in 5 conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy. Dr. Parekh is board certified in American Board Of Internal Medicine - Gastroenterology.

Ravindra Alapati is a Gastroenterologist practicing medicine in Anaheim, California. Dr. Alapati is highly rated in 40 conditions, according to our data. His clinical expertise encompasses Visceromegaly, Bile Duct Obstruction, Diverticular Disease, Gastrostomy, and Gastrectomy. Dr. Alapati is board certified in American Board Of Internal Medicine. Dr. Alapati is currently accepting new patients.

Eugene Yoon is a Gastroenterologist practicing medicine in Fullerton, California. Dr. Yoon is highly rated in 27 conditions, according to our data. His clinical expertise encompasses Choledocholithiasis, Angiodysplasia of the Colon, Ascites, Endoscopy, and Gastrostomy. Dr. Yoon is currently accepting new patients.

Christopher Bui is a Gastroenterologist practicing medicine in Santa Ana, California. Dr. Bui is highly rated in 19 conditions, according to our data. His clinical expertise encompasses Hepatitis, Gastroesophageal Reflux Disease (GERD), Jaundice, Gastrectomy, and Gastrostomy.

Haig Najarian is a Gastroenterologist practicing medicine in Orange, California. Dr. Najarian is highly rated in 18 conditions, according to our data. His clinical expertise encompasses Ascites, Gastroesophageal Reflux Disease (GERD), Visceromegaly, Gastrectomy, and Endoscopy. Dr. Najarian is board certified in American Board Of Internal Medicine. Dr. Najarian is currently accepting new patients.

Syam Gaddam is a Gastroenterologist practicing medicine in Garden Grove, California. Dr. Gaddam is highly rated in 16 conditions, according to our data. His clinical expertise encompasses Hepatitis, Painful Swallowing, Swallowing Difficulty, Gastrostomy, and Gastrectomy. Dr. Gaddam is board certified in American Board Of Internal Medicine. Dr. Gaddam is currently accepting new patients.

Alaa Saif is a Gastroenterologist practicing medicine in Orange, California. Dr. Saif is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Heartburn, Hemorrhoids, Diverticular Disease, Endoscopy, and Gastrectomy. Dr. Saif is board certified in American Board Of Internal Medicine. Dr. Saif is currently accepting new patients.

Carl Albers is a Gastroenterologist practicing medicine in Orange, California. Dr. Albers is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Gas Bloat Syndrome, Hepatitis, Jaundice, Endoscopy, and Colonoscopy.

Jason Shin is a Gastroenterologist practicing medicine in Garden Grove, California. Dr. Shin is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Menetrier Disease, Chronic Erosive Gastritis, Gastroesophageal Reflux Disease (GERD), Gastrectomy, and Gastrostomy. Dr. Shin is board certified in American Board Of Internal Medicine.

John Martin is a Gastroenterologist practicing medicine in Orange, California. Dr. Martin is highly rated in 12 conditions, according to our data. His clinical expertise encompasses Bile Duct Obstruction, Cholangitis, Sclerosing Cholangitis, Endoscopy, and Gastrectomy. Dr. Martin is currently accepting new patients.

Khaldoun Debian is a Gastroenterologist practicing medicine in Tustin, California. Dr. Debian is highly rated in 8 conditions, according to our data. His clinical expertise encompasses Gardner Syndrome, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Gastrectomy. Dr. Debian is currently accepting new patients.

Selena Zhou is a Gastroenterologist practicing medicine in Anaheim, California. Dr. Zhou is highly rated in 3 conditions, according to our data. Her clinical expertise encompasses Hereditary Pancreatitis, Acute Pancreatitis, Pancreatic Pseudocyst, Spontaneous Bacterial Peritonitis, and Endoscopy.

Ousama Alkhatib is a Gastroenterologist practicing medicine in Orange, California. Dr. Alkhatib is highly rated in 1 condition, according to our data. His clinical expertise encompasses Hemorrhoids, Indigestion, Diverticular Disease, and Portal Hypertension. Dr. Alkhatib is board certified in American Board Of Internal Medicine. Dr. Alkhatib is currently accepting new patients.

Victoria Sheen is a Gastroenterologist practicing medicine in Anaheim, California. She has been practicing medicine for over 17 years. Dr. Sheen is highly rated in 1 condition, according to our data. Her clinical expertise encompasses Diverticular Disease, Viral Gastroenteritis, Achalasia, and Gastrointestinal Bleeding. Dr. Sheen is currently accepting new patients.

Essam Quraishi is a Gastroenterologist practicing medicine in Yorba Linda, California. Dr. Quraishi is highly rated in 45 conditions, according to our data. His clinical expertise encompasses Chronic Erosive Gastritis, Gastritis, Nonalcoholic Steatohepatitis (NASH), Gastrectomy, and Gastrostomy.

Brian Riff is a Gastroenterologist practicing medicine in Yorba Linda, California. Dr. Riff is highly rated in 30 conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy. Dr. Riff is board certified in American Board Of Internal Medicine.

Dr. William E. Karnes is a board-certified UCI Health gastroenterologist who specializes in disorders of the gastrointestinal tract, including colorectal cancer screening, gastrointestinal reflux disease (GERD), swallowing disorders, irritable bowel syndrome, peptic ulcers and esophageal disorders.He performs colonoscopies, upper endoscopies and capsule endoscopies, and treats gastrointestinal bleeding, chronic diarrhea, constipation, bloating and bacterial problems in the small intestines.Karnes earned his medical degree from the University of Minnesota Medical School in Minneapolis, where he completed a residency in internal medicine. He went on to complete a fellowship in molecular biology at Mayo Clinic in Rochester, Minn., and a fellowship in gastroenterology at the University of California, Los Angeles.His research interests include colon cancer screening, risk assessment for colon cancer and artificial intelligence-assisted colonoscopy. He also conducts translational research on colon cancer prevention, with an emphasis on regular colorectal screening, especially among patients and families with a genetic risk for developing the disease. Dr. Karnes is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Trichohepatoenteric Syndrome, Nonalcoholic Steatohepatitis (NASH), Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy. Dr. Karnes is board certified in American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine - Internal Medicine.