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 nice and professional.
(6 days ago)
Apr-2026
Very professional.
(1 week ago)
Apr-2026
The staff was very informative. They got me comfortable. Doctor did a good job of doing the colonoscopy.
(1 week ago)
Apr-2026
Dr Devers is friendly, and he explained the procedure in details I could understand. He also had a great team of nurses that took care of my needs with friendliness, and also explained what they were doing to make me comfortable.
(1 week ago)
Apr-2026
Very professional. Process was very organized and streamlined to move smoothly. Staff was also very polite.
(1 week ago)
Apr-2026
Kind, thorough and experienced.
(2 weeks ago)
Apr-2026
Greetings! There are no words to describe the level of care that he provides. It goes FAR beyond great. His team provides the most courteous & professionalism that is very rare. I strongly encourage anyone who is in need of the procedures that IGA in Nampa to go with all of the comfort that one expects from a provider.
(2 weeks ago)
Apr-2026
Dr Dever has helped me so much I couldn't of got this far in life life without him I highly recommend him if anyone is looking for a Gastroenterolgy dr he's the absolute best
(3 weeks ago)
Mar-2026
Very thorough and helpful with questions I had.
(1 month ago)
Feb-2026
I'd give him a 10. Personable. He took care of business in a professional way.
(1 month ago)
Feb-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 nice and professional.
Very professional.
The staff was very informative. They got me comfortable. Doctor did a good job of doing the colonoscopy.
Dr Devers is friendly, and he explained the procedure in details I could understand. He also had a great team of nurses that took care of my needs with friendliness, and also explained what they were doing to make me comfortable.
Very professional. Process was very organized and streamlined to move smoothly. Staff was also very polite.
Kind, thorough and experienced.
Greetings! There are no words to describe the level of care that he provides. It goes FAR beyond great. His team provides the most courteous & professionalism that is very rare. I strongly encourage anyone who is in need of the procedures that IGA in Nampa to go with all of the comfort that one expects from a provider.
Dr Dever has helped me so much I couldn't of got this far in life life without him I highly recommend him if anyone is looking for a Gastroenterolgy dr he's the absolute best
Very thorough and helpful with questions I had.
I'd give him a 10. Personable. He took care of business in a professional way.