# Best Gastroenterologists in Alabama (October 2026)

Updated October 2026. Source: https://bestdocs.us/alabama/gastroenterologists/

Dr. Charles Dasher ranks first with a score of 85.4: 5.0 stars from 200 Google reviews; 54 years since medical school; accepts Medicare assignment. Dr. Christopher Shaver ranks second with a score of 81.2: 4.9 stars from 228 Google reviews; 28 years since medical school; accepts Medicare assignment. Dr. William Halama ranks third with a score of 79.5: 4.9 stars from 89 Google reviews; 41 years since medical school; accepts Medicare assignment.

1. **Charles Dasher, MD** — Gastroenterologist, Birmingham, AL. Score 85.4. Google 5.0 from 200 reviews; 54 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/charles-dasher-gastroenterologist-birmingham-1215981121/)
2. **Christopher Shaver, MD** — Gastroenterologist, Birmingham, AL. Score 81.2. Google 4.9 from 228 reviews; 28 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/christopher-shaver-gastroenterologist-birmingham-1407800378/)
3. **William Halama, MD** — Gastroenterologist, Birmingham, AL. Score 79.5. Google 4.9 from 89 reviews; 41 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/william-halama-gastroenterologist-birmingham-1477591071/)
4. **Owen McLean, MD** — Gastroenterologist, Birmingham, AL. Score 78.3. Google 4.9 from 251 reviews; 25 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/owen-mclean-gastroenterologist-birmingham-1457433088/)
5. **Rohit Malik, MD** — Gastroenterologist, Birmingham, AL. Score 78.3. Google 4.8 from 109 reviews; 42 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/rohit-malik-gastroenterologist-birmingham-1144285164/)
6. **Gregory Champion, MD** — Gastroenterologist, Birmingham, AL. Score 77.9. Google 4.9 from 64 reviews; 38 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/gregory-champion-gastroenterologist-birmingham-1497798995/)
7. **Michael Passarella, MD** — Gastroenterologist, Birmingham, AL. Score 76.8. Google 5.0 from 150 reviews; 23 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/michael-passarella-gastroenterologist-birmingham-1396844197/)
8. **Miles Gresham, MD** — Gastroenterologist, Birmingham, AL. Score 75.8. Google 4.7 from 97 reviews; 45 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/miles-gresham-gastroenterologist-birmingham-1548203680/)
9. **Rajat Parikh, MD** — Gastroenterologist, Birmingham, AL. Score 75.1. Google 4.9 from 238 reviews; 22 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/rajat-parikh-gastroenterologist-birmingham-1093997819/)
10. **Brent Barranco, MD** — Gastroenterologist, Birmingham, AL. Score 75.1. Google 4.8 from 64 reviews; 29 years since medical school; accepts Medicare assignment. [Profile](https://bestdocs.us/doctor/brent-barranco-gastroenterologist-birmingham-1518900919/)

Ranked by the BestDocs score (https://bestdocs.us/methodology/), weighted toward independent third-party verified patient reviews (60%) over public anonymous reviews (40%). Sponsored placements never change rank.