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.
Always so thorough and very helpful. Very friendly and knows what he is talking about. They always feel very confident in what he says.
(2 weeks ago)
Aug-2026
Although I was sedated apparently he was great! The moments I spoke with him before I was out he was very friendly and professional!
(3 weeks ago)
Jul-2026
John is so personable and made the exam a breeze. The exam prep was a struggle but I made it, yeh:)
(1 month ago)
Jul-2026
I saw Dr. Dever for the first time yesterday & it was a wonderful experience. He is friendly & very knowledgeable. He answered all of my questions thoroughly & we discussed next steps on what to do which made me feel @ peace when I left his office :) he was very busy w/ patients when I arrived BTW.
(1 month ago)
Jul-2026
Very attentive and caring about my needs. Thorough and very focused on finding a root cause.
(1 month ago)
Jul-2026
Dr Dever is always so friendly and kind. He explains everything to you so you feel comfortable.
(1 month ago)
Jul-2026
He’s awesome
(3 months ago)
May-2026
Exceptional care and attention during biopsy. Great team that Dr Dever has put together.
(3 months ago)
May-2026
Dr Dever has kind, gentle manner. He answered any questions that I had and really made me feel at ease with my procedure. I would highly recommend him!
(3 months ago)
May-2026
Dr. Dever was extremely thorough and kind. Really enjoyed my experience in clinic!
(3 months ago)
May-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
Always so thorough and very helpful. Very friendly and knows what he is talking about. They always feel very confident in what he says.
Although I was sedated apparently he was great! The moments I spoke with him before I was out he was very friendly and professional!
John is so personable and made the exam a breeze. The exam prep was a struggle but I made it, yeh:)
I saw Dr. Dever for the first time yesterday & it was a wonderful experience. He is friendly & very knowledgeable. He answered all of my questions thoroughly & we discussed next steps on what to do which made me feel @ peace when I left his office :) he was very busy w/ patients when I arrived BTW.
Very attentive and caring about my needs. Thorough and very focused on finding a root cause.
Dr Dever is always so friendly and kind. He explains everything to you so you feel comfortable.
He’s awesome
Exceptional care and attention during biopsy. Great team that Dr Dever has put together.
Dr Dever has kind, gentle manner. He answered any questions that I had and really made me feel at ease with my procedure. I would highly recommend him!
Dr. Dever was extremely thorough and kind. Really enjoyed my experience in clinic!