Dr. Peter G. Deveaux, M.D., is a dual board-certified general and colorectal surgeon who sees patients at our Sidney Health Center offices. He has been practicing in Sidney since 2021. Dual board-certified by the ABS and ABCRS and a U.S. Army veteran, he earned his M.D. from Chicago Medical School and completed surgical residencies at Loyola University and the University of Louisville. He specializes in general and laparoscopic surgery, endoscopy, colonoscopy, colorectal disease, anorectal disorders, and IBD care.
Dr. Peter G. Deveaux, M.D., is a dual board-certified general and colorectal surgeon who sees patients at our Sidney Health Center offices. He has been practicing in Sidney since 2021. Dual board-certified by the ABS and ABCRS and a U.S. Army veteran, he earned his M.D. from Chicago Medical School and completed surgical residencies at Loyola University and the University of Louisville. He specializes in general and laparoscopic surgery, endoscopy, colonoscopy, colorectal disease, anorectal disorders, and IBD care.
The reviews listed below were collected independently of Sidney Health Center through rater8. Each review represents an authentic and verified patient experience.
Dr. Deveaux is great and addresses everything
(1 month ago)
Sep-2026
Personable and thorough in explaining diagnosis and treatment
(1 month ago)
Aug-2026
Dr.Deveaux..
(2 months ago)
Aug-2026
Great doctor
(2 months ago)
Jul-2026
Curious
(3 months ago)
Jul-2026
Very helpful. Complete comprehensible explanations. He made certain I understood.
(3 months ago)
Jul-2026
Listened well and provided easy to understand information and explanations. Calming demeanor and easy to talk to.
(5 months ago)
May-2026
Friendly, knowledgeable, very open & frank discussions. Operation was excellent, painless & no after affects.
(5 months ago)
May-2026
He explains everything to you in the way that you understand everything that makes it easy to comprehend. He does not talk down to you. Very professional
(5 months ago)
May-2026
Always willing to give you an opportunity to talk and explain!!
(5 months ago)
Apr-2026
Sidney Health Center
216 14th Ave SW Sidney, MT 59270
Dr. Peter G. Deveaux, M.D., a Board-Certified General and Colorectal Surgeon, joined Sidney Health Center in September 2021, bringing with him 25 years of extensive surgical experience. Dr. Deveaux’s path to a career in medicine began in his hometown of Dubuque, Iowa, where childhood asthma and visits to the emergency room sparked his early interest in healthcare. Inspired by the television show MASH* and a neighbor who was a physician, Dr. Deveaux knew from a young age that he wanted to pursue a career in surgery.
Dr. Deveaux served in the United States Army for 14 years and an additional two years in the Army Reserves. His military career took him on multiple deployments, including three tours in Afghanistan, two in Iraq, and one in Syria. These experiences not only honed his surgical skills but also fueled his passion for teaching, a calling he has carried with him throughout his career.
Dr. Deveaux is particularly passionate about colorectal cancer prevention and treatment. He completed a fellowship in colorectal surgery and performs approximately 500 colonoscopies per year. He finds great fulfillment in practicing at Sidney Health Center, where he feels he is truly making a difference in his patients' lives, particularly in the area of colon cancer screening.
In addition to his work at Sidney Health Center, Dr. Deveaux is actively involved in teaching Advanced Trauma Life Support (ATLS) courses across Montana, including in Billings, Helena, and Great Falls. His dedication to education extends beyond U.S. borders; in April 2024, Dr. Deveaux volunteered to teach ATLS to physicians in Ukraine through a partnership between the American College of Surgeons and Harvard University’s Humanitarian Program. Despite challenging conditions, he spent approximately three weeks training local physicians to become certified instructors, ensuring the sustainability of life-saving trauma care in the region.
Dr. Deveaux holds a deep appreciation for history and literature, particularly historical novels and biographies. A biography by Dr. Tom Dooley, a Navy doctor during the Vietnam War, was instrumental in solidifying his desire to become a physician. When not in the operating room or classroom, Dr. Deveaux enjoys reading and spending time with his family, which includes his wife and three grown sons.
Dr. Deveaux’s story is one of service, dedication, and a lifelong commitment to the healing arts. His unique blend of military and medical experience, coupled with his passion for teaching and colorectal cancer prevention, makes him an invaluable asset to Sidney Health Center and the broader medical community.
Specialty General Surgery
Medical School University of Health Sciences - The Chicago Medical School North Chicago, Illinois
Residency Loyola University Medical Center - Maywood, Illinois University of Louisville - Louisville, Kentucky
Began practicing in Sidney in: September 2021
Specializes In/Practice Includes • General Surgery • Laparoscopic Surgery • Endoscopy • Colonoscopy • Colorectal Surgery • Anorectal disorders (fissures, fistulas, hemorrhoids) • Fecal Incontinence • Inflammatory Bowel Disease (Crohn’s Disease, Ulcerative Colitis) • Ostomy Care (colostomy, ileostomy)
Certifications • Board Certified- American Board of Surgery • Board Certified- American Board of Colon and Rectal Surgery • Basic Life Support (BLS) • Advanced Cardiac Life Support Provider (ACLS) • Advanced Surgical Skills for Exposure in Trauma (ASSET) • Advanced Trauma Life Support Provider (ATLS) • Pediatric Advanced Life Support Provider (PALS)
Professional Memberships • American Medical Association • American College of Surgeons • American College of Gastroenterology • American Society of Colon and Rectal Surgeons • Society for Surgery of the Alimentary Tract • Association for Academic Surgery • Special Operations Medical Association • Association for Surgical Education • Surgical Infection Society • Central Surgical Association
Dr. Deveaux is great and addresses everything
Personable and thorough in explaining diagnosis and treatment
Dr.Deveaux..
Great doctor
Curious
Very helpful. Complete comprehensible explanations. He made certain I understood.
Listened well and provided easy to understand information and explanations. Calming demeanor and easy to talk to.
Friendly, knowledgeable, very open & frank discussions. Operation was excellent, painless & no after affects.
He explains everything to you in the way that you understand everything that makes it easy to comprehend. He does not talk down to you. Very professional
Always willing to give you an opportunity to talk and explain!!