Dr. Stephen Marcum

Nirav Thosani is a Gastroenterologist in Bellaire, Texas. Dr. Thosani is highly rated in 40 conditions, according to our data. His top areas of expertise are Choledocholithiasis, Bile Duct Obstruction, Pancreatic Cancer, Gastrostomy, and Endoscopy.

Mohammad Bilal is a Gastroenterologist in Galveston, Texas. Dr. Bilal is highly rated in 34 conditions, according to our data. His top areas of expertise are Gastrointestinal Bleeding, Gallbladder Disease, Cholecystitis, Endoscopy, and Colonoscopy.

Dr. Mohamed Othman is the William T. Butler Endowed Chair for Distinguished Faculty and Professor of Medicine, Internal Medicine, Gastroenterology at Baylor College of Medicine. He is also Service Line Chief, Gastroenterology Section at Baylor St Luke's Medical Center; and Member of the Dan L Duncan Comprehensive Cancer Center at Baylor College of Medicine.Dr. Othman’s clinical interests include: endoscopic submucosal dissection, endoscopic mucosal resection, barrett's esophagus surveillance and ablation, chronic and acute pancreatitis, pancreatic cysts, pancreatic cancer screening for high-risk patients, endoscopic ultrasound, ERCP and cholangioscopy with laser; colorectal cancer screening & colonoscopy; per-oral endoscopic myotomy (POEM); gastric per-oral endoscopic myotomy for gastroparesis; and full thickness endoscopic resection.His professional skills cover tissue resection techniques such as ESD and EMR; management of chronic pancreatitis; endoscopic necrosectomy; EUS-assisted ERCP; per oral endoscopic myotomy; management of pancreatic cysts; and management of Barrett's Esophagus.Dr. Othman received his medical degree from the University of Mansoura School of Medicine in Mansoura, Egypt. He completed his residency in Internal Medicine at the University of New Mexico School of Medicine in Albuquerque, where he was also a Gastroenterology and Hepatology Fellow. He also completed a Fellowship in Advanced Endoscopy at the Mayo Clinic Jacksonville in Jacksonville, Florida.Dr. Othman holds certifications from the American Board of Internal Medicine and the American Board of Gastroenterology. He is a member of the American College of Gastroenterology, American Gastroenterology Association, American Society for Gastrointestinal Endoscopy, and American College of Physicians.Among his numerous awards, Dr. Othman received the 2014 Diversity Award from the American Society for Gastrointestinal Endoscopy. Dr. Othman is highly rated in 23 conditions, according to our data. His top areas of expertise are Exocrine Pancreatic Insufficiency, Colorectal Polyps, Achalasia, Endoscopy, and Colonoscopy.