The 20 Best Colonoscopy Doctors in Montana, US
Find the Experts and Specialists who perform Colonoscopy
Downtown Clinic - Gastroenterology
Keri Hill is a Gastroenterologist practicing medicine in Billings, Montana. She has been practicing medicine for over 26 years. Dr. Hill is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Colitis, Hiatal Hernia, Collagenous Colitis, Endoscopy, and Colonoscopy. Dr. Hill is board certified in American Board Of Internal Medicine. Dr. Hill is currently accepting new patients.
Downtown Clinic - Gastroenterology
Yevgeniy Arefiev is a Gastroenterologist practicing medicine in Billings, Montana. He has been practicing medicine for over 12 years. Dr. Arefiev is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Diverticular Disease, Gardner Syndrome, Endoscopy, and Colonoscopy. Dr. Arefiev is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Arefiev is currently accepting new patients.
Jeff Willis is a Gastroenterologist practicing medicine in Missoula, Montana. Dr. Willis is rated as an Advanced provider by MediFind in Colonoscopy. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Bile Duct Obstruction, Esophagitis, Endoscopy, and Colonoscopy. Dr. Willis is currently accepting new patients.
Downtown Clinic - Gastroenterology
Stephen Baum is a Gastroenterologist practicing medicine in Billings, Montana. He has been practicing medicine for over 42 years. Dr. Baum is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Berdon Syndrome, Achalasia, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy. Dr. Baum is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Baum is currently accepting new patients.
St. Vincent - Hospitalist
Dale Stapler is a primary care provider, practicing in Pediatrics and Internal Medicine in Billings, Montana. He has been practicing medicine for over 15 years. Dr. Stapler is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Chronic Kidney Disease, Sepsis, Peptic Ulcer, Endoscopy, and Hip Replacement. Dr. Stapler is board certified in American Board Of Internal Medicine and American Board Of Pediatrics. Dr. Stapler is currently accepting new patients.
Dr. Petersen was born and raised in Arvada, Colorado. She earned her undergraduate degree from the University of Colorado - Boulder and her Doctor of Medicine from the University of Colorado Health Sciences Center in Denver. Dr. Petersen completed an Internal Medicine Internship with the University of Utah – Salt Lake City and an Obstetrics and Gynecology Residency with Banner Good Samaritan Medical Center in Phoenix, Arizona. She completed a Gynecologic Oncology Fellowship with the University of California, Davis Medical Center. A board-certified provider, Dr. Petersen’s clinical interests include treating and preventing cervical, endometrial, ovarian, vaginal, and vulvar cancers, targeted treatments, minimally invasive surgery, complementary and alternative medicine incorporation into Western Medicine, and holistic oncology care.“I will be with you during the hard times and celebrate the successes. You will be cared for. I am passionate about shared decision-making. Empowering you with as much information as you would like and any additional information I think you should know. I believe in Individualized patient care and listening to what my patients need.”When not in the office, Dr. Petersen enjoys spending her time in the mountains with her family. Dr. Petersen is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 17 other conditions, according to our data. Her clinical expertise encompasses Cervical Cancer, Neuroendocrine Carcinoma of the Cervix, Ovarian Carcinosarcoma, Colonoscopy, and Bladder Reconstruction. Dr. Petersen is board certified in American Board Of Obstetrics And Gynecology and American Board Of Obstetrics And Gynecology.
Bozeman Health GI Clinic
Peter Walsh is a Gastroenterologist practicing medicine in Bozeman, Montana. He has been practicing medicine for over 41 years. Dr. Walsh is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Barrett Esophagus, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Gastrectomy. Dr. Walsh is board certified in American Osteopathic Board Of Internal Medicine and American Osteopathic Board Of Internal Medicine. Dr. Walsh is currently accepting new patients.
Kevin Kolendich is a Gastroenterologist practicing medicine in Missoula, Montana. Dr. Kolendich is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Lower Esophageal Ring, Benign Esophageal Stricture, Endoscopy, and Gastrectomy.
Casey Kolendich is a Gastroenterologist practicing medicine in Missoula, Montana. Dr. Kolendich is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Colonoscopy.
Livingston Healthcare
Justin Roberts is a General Surgeon practicing medicine in Livingston, Montana. He has been practicing medicine for over 24 years. Dr. Roberts is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Hernia, Gallbladder Disease, Cholecystitis, Endoscopy, and Hernia Surgery. Dr. Roberts is board certified in American Board Of Surgery. Dr. Roberts is currently accepting new patients.
Alexis Hokenstad is an Oncologist practicing medicine in Billings, Montana. Dr. Hokenstad is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Endometrial Cancer, Malignant Mixed Mullerian Tumor, Ovarian Cancer, Vulvectomy, and Colonoscopy. Dr. Hokenstad is currently accepting new patients.
Office
Rachel Ott is an Intensive Care Medicine provider practicing medicine in Billings, Montana. Dr. Ott is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Gallbladder Disease, Paget Disease of the Breast, Breast Cancer, Gastrostomy, and Hernia Surgery.
Great Falls Surgical Associates
Chad Engan is a General Surgeon practicing medicine in Great Falls, Montana. Dr. Engan is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Hernia, Hiatal Hernia, Familial Colorectal Cancer, Hernia Surgery, and Ileostomy.
Benefis Health System East Campus
Harnek Singh is an Internal Medicine provider practicing medicine in Great Falls, Montana. Dr. Singh is rated as an Experienced provider by MediFind in Colonoscopy. His clinical expertise encompasses Liver Failure, Saddle Pulmonary Embolism, Heart Failure with Preserved Ejection Fraction (HFpEF), Endoscopy, and Fasciotomy.
St. Vincent - Hospitalist
Elizabeth Wannebo is an Internal Medicine provider practicing medicine in Billings, Montana. She has been practicing medicine for over 23 years. Dr. Wannebo is rated as an Experienced provider by MediFind in Colonoscopy. Her clinical expertise encompasses Liver Failure, Gallbladder Disease, Endoscopy, and Colonoscopy. Dr. Wannebo is board certified in American Board Of Internal Medicine. Dr. Wannebo is currently accepting new patients.
St. Vincent - Hospitalist
Jennifer Bigback is a primary care provider, practicing in Family Medicine in Billings, Montana. She has been practicing medicine for over 20 years. Dr. Bigback is rated as an Experienced provider by MediFind in Colonoscopy. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Pleurisy, Chronic Kidney Disease, Sepsis, Endoscopy, and Hip Replacement. Dr. Bigback is board certified in American Board Of Family Medicine. Dr. Bigback is currently accepting new patients.
St. Vincent - Hospitalist
Mario Giovanini is a primary care provider, practicing in Family Medicine in Billings, Montana. He has been practicing medicine for over 14 years. Dr. Giovanini is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Sepsis, Peptic Ulcer, Hip Replacement, and Endoscopy. Dr. Giovanini is board certified in American Board Of Family Medicine. Dr. Giovanini is currently accepting new patients.
St Peter's Medical Group North
Michael Lee is a Gastroenterologist practicing medicine in Helena, Montana. Dr. Lee is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Gastroesophageal Reflux Disease (GERD), Trichohepatoenteric Syndrome, Cirrhosis, Gastrectomy, and Colonoscopy.
Montana Gastroenterology PLLC
Eric Stone is a Gastroenterologist practicing medicine in Missoula, Montana. Dr. Stone is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 47 other conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Bile Duct Stricture, Choledocholithiasis, Endoscopy, and Colonoscopy.
Bozeman Gastroenterology PC
Andrew Gentry is a Gastroenterologist practicing medicine in Bozeman, Montana. Dr. Gentry is rated as an Experienced provider by MediFind in Colonoscopy. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Turcot Syndrome, Endoscopy, and Colonoscopy.
Last Updated: 04/28/2026








