Dr. David R. Martin

David Bernstein is a General Surgeon and a Bariatric Medicine provider in Riverside, California. Dr. Bernstein is rated as an Advanced provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Obesity, Bile Duct Stricture, Thrombophlebitis, Sleeve Gastrectomy, and Gastrectomy.

Nicholas Nissen is a General Surgeon and a Transplant Surgeon in West Hollywood, California. Dr. Nissen is rated as an Elite provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Neuroendocrine Tumor, Pancreatic Cancer, Pancreatic Ductal Adenocarcinoma, Liver Transplant, and Pancreatectomy.

Douglas Krahn, MD, FACS, is a founder of Western Baraitric, AMC, the medical director of Parkview Center for Weight Loss, in Riverdale CA, and is also the founder and medical director of Weight Loss Services at St. Bernadine Medical Center in San Bernadino, CA. He was fellowship trained in Bariatric surgery in 2001 by Robert T. Merema, MD, FACS, at Holy Cross Hospital in Fort Lauderdale, FL. Dr. Krahn received undergraduate and MD degrees from the University of California Davis, and general surgery certification from Loma Linda University. He is a current member of the American Society for Metabolic and Bariatric Surgery, the AMA, and a Fellow of the American College of Surgeons. Dr. Krahn has preformed over 3000 Bariatric surgeries, and focuses his practice on a multitude of operations, which include LAGB, LGBP, Laparoscopic Silastic Ring GBP, LSG, and Revision Surgery. He remains committed to optimal selection of these operative tools to help patients achieve tremendous improvements in their health and quality of life.Inspiriting hope, health, and quality of life. Dr. Krahn is rated as a Distinguished provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Obesity, Obesity in Children, Gastroesophageal Reflux Disease (GERD), Sleeve Gastrectomy, and Gastrectomy.