Shankar Raman is a Gastroenterologist in Des Moines, Iowa. Dr. Raman is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Diverticular Disease, Hernia Surgery, and Pancreaticoduodenectomy.

Peter Grubel is a Gastroenterologist in Des Moines, Iowa. Dr. Grubel is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Bile Duct Obstruction, Gallstones, Choledocholithiasis, Endoscopy, and Colonoscopy.

Soren Kraemer is a Colorectal Surgeon and a General Surgeon in Des Moines, Iowa. Dr. Kraemer is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Diverticular Disease, Hernia Surgery, and Ileostomy. Dr. Kraemer is currently accepting new patients.

Mayin Lin is a Colorectal Surgeon and a General Surgeon in Des Moines, Iowa. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Hemorrhoids, Anal Fissure, Pilonidal Sinus Disease, Appendectomy, and Colostomy. Dr. Lin is currently accepting new patients.

Poonputt Chotiprasidhi is a Gastroenterologist in Des Moines, Iowa. Dr. Chotiprasidhi is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Painful Swallowing, Swallowing Difficulty, Gastric Dysmotility, Gastrectomy, and Endoscopy.

Molly Gross, MD joined The Iowa Clinic in 2017 after moving back home from Utah to be closer to her family in Beaverdale. She chose colorectal surgery because of mentors in medical school and residency who showed her the great parts of being a colorectal surgeon. She enjoys the diversity and wide variety of cases colorectal surgery has to offer. The most rewarding part of her job is helping people feel comfortable talking about something they are uncomfortable talking about. Dr. Gross is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Retroperitoneal Inflammation, Familial Colorectal Cancer, Colorectal Cancer, Bladder Reconstruction, and Hernia Surgery.

Marco Olivera-Martinez is a Gastroenterologist and a Hepatologist in Des Moines, Iowa. Dr. Olivera-Martinez has been practicing medicine for over 43 years and is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Cirrhosis, Visceromegaly, Hepatitis, Liver Transplant, and Colonoscopy. Dr. Olivera-Martinez is currently accepting new patients.

Dr. Fahler had the opportunity to work with our Gastroenterology (GI) physicians during his residency training in which they treated him as a colleague and showed great cohesiveness among the group. The GI team and the quality of The Iowa Clinic overall is why Dr. Fahler decided to join the practice. Early in his training, he worked in a GI Clinic where he developed a strong interest for disorders of the GI tract. That and the balance between clinical and procedural medicine are what attracted him to the field. Dr. Fahler is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Ulcerative Colitis, Crohn's Disease, Colitis, Gastrectomy, and Endoscopy.

Amber Tierney, MD decided to join The Iowa Clinic because of our reputation for great patient care. Dr. Tierney is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Gastrectomy, and Colonoscopy.

Daniel Opheim, MD, joined The Iowa Clinic Colorectal Surgery Department in 2022 and chose the Clinic because he wanted to work alongside a physician group that has a collective mission to provide the best possible care for its patients. He chose to specialize in colorectal surgery because colorectal disorders are unfortunately very common in our society, and he felt it would allow him to make a positive impact on many lives. He enjoys all aspects that colorectal surgery has to offer but is most interested in robotics, minimally invasive surgery, and endoscopy procedures. The most rewarding part of his job is when he is can offer a solution to a patient’s diagnosis or health issue - and the patient is able to make a full recovery. Dr. Opheim is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Rectal Prolapse, Anal Fissure, Mesenteric Venous Thrombosis, Bladder Reconstruction, and Hernia Surgery.

Ramon Reyes is a Gastroenterologist in West Des Moines, Iowa. Dr. Reyes is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Ulcerative Colitis, Esophagitis, Swallowing Difficulty, Endoscopy, and Gastrectomy.

Kyle Rogers is a Colorectal Surgeon in West Des Moines, Iowa. Dr. Rogers is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Familial Colorectal Cancer, Lynch Syndrome, Colorectal Cancer, Colonoscopy, and Colostomy.

Xiaoping He is a Gastroenterologist in Clive, Iowa. Dr. He is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Berdon Syndrome, Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, and Endoscopy.

Bernard Feldman is a Gastroenterologist in Clive, Iowa. Dr. Feldman is rated as an Experienced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Bile Duct Stricture, Bile Duct Obstruction, Cholestasis, Endoscopy, and Colonoscopy.

Harvey Giller is a Gastroenterologist in Clive, Iowa. Dr. Giller is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Gastrectomy, and Endoscopy.

Krishnarao Gorrepati is a Gastroenterologist in Clive, Iowa. Dr. Gorrepati is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Gorrepati is currently accepting new patients.

Jonathan Jensen is a Gastroenterologist in Clive, Iowa. Dr. Jensen is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Esophagitis, Esophageal Varices, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy. Dr. Jensen is currently accepting new patients.

Stacey Roberts is a Gastroenterologist in Clive, Iowa. Dr. Roberts is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Berdon Syndrome, Anal Fissure, Crohn's Disease, Gastrectomy, and Endoscopy. Dr. Roberts is currently accepting new patients.

Archana Verma is a Gastroenterologist in Clive, Iowa. Dr. Verma is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. Her top areas of expertise are Crohn's Disease, Choledocholithiasis, Bile Duct Obstruction, Gastrectomy, and Endoscopy.

Michael Obrien is a Gastroenterologist in Clive, Iowa. Dr. Obrien is rated as an Advanced provider by MediFind in the treatment of Turcot Syndrome. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Endoscopy, and Gastrectomy. Dr. Obrien is currently accepting new patients.