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.
He explained in detail what he was doing before he performed the banding.
I appreciate knowing what is happening. He is skilled and quick.
(2 weeks ago)
Sep-2026
Dr Dever is always concerned and takes care to ensure that I understand and know results
(3 weeks ago)
Sep-2026
He is the greatest.
(3 weeks ago)
Sep-2026
I am pleased to have Dr. Dever as my
GI Doctor.
(1 month ago)
Sep-2026
He was through and his associates, check receptionist good , nurse check in very good listener , and training professional very good .
(1 month ago)
Sep-2026
Dr. Dever is very professional, friendly and thorough. I would recommend him to anyone.
(1 month ago)
Sep-2026
Dr Dever was very professional and approachable, and best of all, both procedures were done before I even knew they had started. His staff was informative and let me know about each task that they had to do. I had no side effects from the anesthesia or procedures themselves and was quickly back to my normal daily routine. Honestly, the worst part is the prep. That’s no fun.
But huge thanks to the IGA staff for taking care of me.
(1 month ago)
Aug-2026
Excellent doctor- professional, compassionate and thorough. I felt well-cared for throughout the procedure.
(1 month ago)
Aug-2026
Always so thorough and very helpful. Very friendly and knows what he is talking about. They always feel very confident in what he says.
(1 month 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!
(2 months ago)
Jul-2026
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
He explained in detail what he was doing before he performed the banding. I appreciate knowing what is happening. He is skilled and quick.
Dr Dever is always concerned and takes care to ensure that I understand and know results
He is the greatest.
I am pleased to have Dr. Dever as my GI Doctor.
He was through and his associates, check receptionist good , nurse check in very good listener , and training professional very good .
Dr. Dever is very professional, friendly and thorough. I would recommend him to anyone.
Dr Dever was very professional and approachable, and best of all, both procedures were done before I even knew they had started. His staff was informative and let me know about each task that they had to do. I had no side effects from the anesthesia or procedures themselves and was quickly back to my normal daily routine. Honestly, the worst part is the prep. That’s no fun. But huge thanks to the IGA staff for taking care of me.
Excellent doctor- professional, compassionate and thorough. I felt well-cared for throughout the procedure.
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!