Jason Samarasena is a Gastroenterologist in Orange, California. Dr. Samarasena is rated as an Elite provider by MediFind in Endoscopy. His top areas of expertise are Barrett Esophagus, Jaundice, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy.

Kenneth Chang is a Gastroenterologist in Newport Beach, California. Dr. Chang is rated as an Elite provider by MediFind in Endoscopy. His top areas of expertise are Hiatal Hernia, Gastroesophageal Reflux Disease (GERD), Barrett Esophagus, Endoscopy, and Colonoscopy.

John Lee is a Gastroenterologist in Orange, California. Dr. Lee is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Jaundice, Cholestasis, Bile Duct Stricture, Endoscopy, and Pancreatectomy.

Ralph Clayman is an Urologist in Orange, California. Dr. Clayman is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Kidney Stones, Perirenal Abscess, Carbuncle, Lithotripsy, and Ureteroscopy.

Ninh Nguyen is a General Surgeon in Orange, California. Dr. Nguyen is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Hiatal Hernia, Hernia, Obesity, Endoscopy, and Gastric Bypass.

Amit Raina is a Gastroenterologist in Fullerton, California. Dr. Raina is rated as a Distinguished provider by MediFind in Endoscopy. His top areas of expertise are Bile Duct Obstruction, Childhood Pancreatitis, Cholestasis, Endoscopy, and Gastrostomy. Dr. Raina is currently accepting new patients.

Brian Riff is a Gastroenterologist in Anaheim, California. Dr. Riff is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy. Dr. Riff is currently accepting new patients.

Narayanaiyengar Devaraj is a Cardiologist in Anaheim, California. Dr. Devaraj is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Hypertensive Heart Disease, Pediatric Myocarditis, Apoplexy, Pacemaker Implantation, and Endoscopy. Dr. Devaraj is currently accepting new patients.

Harjivan Kohli is an Urologist in Fullerton, California. Dr. Kohli is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Lichen Sclerosus, Urethral Stricture, Enlarged Prostate (BPH), Lithotripsy, and Ureteroscopy. Dr. Kohli is currently accepting new patients.

Dr. Jason Grieshober, MD, is a highly accomplished Board-Certified/Fellowship-Trained Sports Medicine and General Orthopaedic Surgeon. Originally from Erie, Pennsylvania, Dr. Grieshober has a stellar academic background. He graduated Magna Cum Laude with a degree in Biology and a minor in Psychology from Clarion University of Pennsylvania. There he was honored as the Banner Holder for the College of Science – a testament to his academic excellence.Continuing his pursuit of excellence, Dr. Grieshober attended medical school at Temple University in Philadelphia. While at Temple, he served as the chapter President of Alpha Omega Alpha (AOA), the national medical honor society.Dr. Grieshober completed his Orthopedic Surgery residency at The University of Maryland Medical Center and R Adams Cowley Shock Trauma Center in Baltimore, Maryland, renowned worldwide for its expertise in trauma care. During his residency, he served as the Administrative Chief Resident. In this role he gained valuable experience covering high school teams and the University of Maryland Terrapins.Following residency, Dr. Grieshober pursued additional subspecialty training in Sports Medicine at the prestigious Kerlan-Jobe Institute in Los Angeles, California. Under the guidance of Dr. Neal ElAttrache, he gained extensive experience in the diagnosis, treatment, and prevention of sports-related injuries. Dr. Grieshober had the privilege of assisting in the care of various professional sports teams. Dr. Grieshober is rated as an Experienced provider by MediFind in Endoscopy. His top areas of expertise are Osteoarthritis, Bursitis, Tendinitis, Endoscopy, and Shoulder Arthroscopy.

Kavita Singh is a Gastroenterologist in Anaheim, California. Dr. Singh is rated as an Advanced provider by MediFind in Endoscopy. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Colonoscopy.

Ravindra Alapati is a Gastroenterologist in Anaheim, California. Dr. Alapati is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Chronic Erosive Gastritis, Gastrostomy, and Gastrectomy. Dr. Alapati is currently accepting new patients.

Michael Ordon is an Urologist in Orange, California. Dr. Ordon is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Kidney Stones, Urinary Tract Infection (UTI), Enlarged Prostate (BPH), Lithotripsy, and Ureteroscopy.

Elspeth Mcdougall is an Urologist in Orange, California. Dr. Mcdougall is rated as an Advanced provider by MediFind in Endoscopy. Her top areas of expertise are Kidney Stones, Renal Cell Carcinoma (RCC), Endoscopy, and Lithotripsy.

Joseph Carmichael is a Colorectal Surgeon and a General Surgeon in Orange, California. Dr. Carmichael is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Rectal Prolapse, Appendectomy, and Ileostomy.

Kamaljot Kaler is an Urologist in Orange, California. Dr. Kaler is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Kidney Stones, Renal Cell Carcinoma (RCC), Chromophobe Renal Cell Carcinoma, Ureteroscopy, and Endoscopy.

Steven Mills is a Colorectal Surgeon in Orange, California. Dr. Mills is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Ogilvie Syndrome, Familial Colorectal Cancer, Colorectal Cancer, Ileostomy, and Endoscopy.

Marcelo Hinojosa is a General Surgeon and a Gastroenterologist in Orange, California. Dr. Hinojosa is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Obesity, Hernia, Hiatal Hernia, Endoscopy, and Gastric Bypass.

Nathan Park is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Park is rated as an Advanced provider by MediFind in Endoscopy. His top areas of expertise are Scrotal Swelling, Testicular Cancer, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

Nimisha Parekh is a Gastroenterologist in Orange, California. Dr. Parekh is rated as an Advanced provider by MediFind in Endoscopy. Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.