Dr. John Dever, M.D., was born and raised in Washington DC. He was director of gastroenterology at Saltzer Health/Intermountain Health in Idaho until operations ended in March 2024. He joined IGA in 2024. He is a board-certified gastroenterologist who focuses on wellness, diagnostic and therapeutic endoscopy, optimal patient experiences, colon cancer prevention, brain-gut disorders, and longevity.
Dr. John Dever, M.D., was born and raised in Washington DC. He was director of gastroenterology at Saltzer Health/Intermountain Health in Idaho until operations ended in March 2024. He joined IGA in 2024. He is a board-certified gastroenterologist who focuses on wellness, diagnostic and therapeutic endoscopy, optimal patient experiences, colon cancer prevention, brain-gut disorders, and longevity.
The reviews listed below were collected independently of Idaho Gastroenterology Associates through rater8. Each review represents an authentic and verified patient experience.
Very thorough and helpful with questions I had.
(2 weeks ago)
Feb-2026
I'd give him a 10. Personable. He took care of business in a professional way.
(2 weeks ago)
Feb-2026
The very best care! Staff included…
(3 weeks ago)
Feb-2026
Good experience
(3 weeks ago)
Feb-2026
He was very helpful explaining the entire process taking the time needed.
(3 weeks ago)
Feb-2026
Dr. Dever was very competent, as well as forthcoming in sharing the results.
(1 month ago)
Feb-2026
Dr Dever was very informative, he explained the procedure to me in detail.
(1 month ago)
Jan-2026
Very professional and very personal able. I would definitely come back to that office on how well I was treated
(1 month ago)
Jan-2026
Dr. Dever was great. His team seemed at ease, warm, and professional. He answered my questions before the sedation kicked in. Any conversation I had post-op, I do not recall! Lol. My husband was very vague with the details. I didn't have any side effects after my procedure. I got an information packet and his team has been diligent in being available via the Klara app.
(1 month ago)
Jan-2026
Sooth procedure in and out very nice for my first colonoscopy
(1 month ago)
Jan-2026
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Canyon County Endoscopy Center
1216 Garrity Boulevard Nampa, ID 83687
Dr. John Dever, M.D., was born and raised in Washington DC. He was director of gastroenterology at Saltzer Health/Intermountain Health in Idaho until operations ended in March 2024. He joined IGA in 2024. He is a board-certified gastroenterologist who focuses on wellness, diagnostic and therapeutic endoscopy, optimal patient experiences, colon cancer prevention, brain-gut disorders, and longevity.
Dr. Dever was clinical faculty at UC San Diego School of Medicine from 2015 to 2022 and trained medical students, residents, and fellows. Prior to leaving, the Department of Medicine (DOMCAP) voted unanimously for his promotion to Associate Clinical Professor. His research has been published in multiple top peer-reviewed journals. Dr. Dever had the highest adenoma detection rate (67%) among peers, received the highest teacher rating and was an appointed mentor for the UCSD Bridge Program for Scholars.
Dr. Dever was also a member of the patient safety committee. Outside of work, he enjoys spending time with family and friends, mountain biking, and traveling.
See other doctors in Idaho Gastroenterology Associates
Very thorough and helpful with questions I had.
I'd give him a 10. Personable. He took care of business in a professional way.
The very best care! Staff included…
Good experience
He was very helpful explaining the entire process taking the time needed.
Dr. Dever was very competent, as well as forthcoming in sharing the results.
Dr Dever was very informative, he explained the procedure to me in detail.
Very professional and very personal able. I would definitely come back to that office on how well I was treated
Dr. Dever was great. His team seemed at ease, warm, and professional. He answered my questions before the sedation kicked in. Any conversation I had post-op, I do not recall! Lol. My husband was very vague with the details. I didn't have any side effects after my procedure. I got an information packet and his team has been diligent in being available via the Klara app.
Sooth procedure in and out very nice for my first colonoscopy