Rapid City Medical Center is home to the largest board-certified group of gastroenterologists in the Black Hills region. Our six physicians have extensive formal training and practical experience in endoscopy. They are supported by four certified nurse practitioners and one physician assistant. 

As a team, they specialize in prevention and treatment of disorders of the digestive system, including the liver and pancreas. They also offer comprehensive consultative and treatment services and gastrointestinal endoscopy in The Endoscopy Center, a state-of-the-art ambulatory surgery center conveniently attached to Rapid City Medical Center. 

Our Gastroenterology Services

Gastroesophageal Reflux Disease (GERD)
Esophageal Strictures
Dysphagia (Problems Swallowing)
Peptic Ulcer Disease
H. Pylori
Irritable Bowel Syndrome
Inflammatory Bowel Disease (Crohn’s and Ulcerative Colitis)
Colorectal Cancer Screening
Bile Duct Stones & Strictures
Liver Masses or Cysts
Pancreatic Cysts

Our Endoscopic services 

Upper Endoscopy (EGD)
Small Bowel Capsule Endoscopy
Biliary & Pancreatic Endoscopy (ERCP)
Endoscopic Ultrasound (EUS) 
Esophageal pH (Bravo)
Esophageal Motility Studies
Anorectal Manometry
Hemorrhoidal Banding
Flex sig

Clinical Trials


Our Gastroenterology Providers

Oksana Anand, MD
Dale Bachwich, MD
Nathan Jaqua, MD
Blake Jones, MD
Michael McGuire, MD
Valerie Stephens, MD
Loyal Tillotson, MD
Megan Collier, CNP
Chantel Holz, C-NP
Liz Larson, C-NP
Leslie Moss, CNP
Kristin Rokusek, C-NP
Laura Schirber, C-NP
Rochelle Smith, C-NP
Amber Wenger, PA-C

Please contact us within five days of your appointment in the event of a cancellation.