Douglas RexM.D.
Gastroenterology·Indianapolis, IN
Douglas Rex, M.D. is a Gastroenterology provider in Indianapolis, IN affiliated with 3 ambulatory surgery centers in IN, as of July 2026.
- NPI1164486643
- Registered2006
- Centers3
- StateIN
- Class of1980
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Education
Education on record as of August 2026.
Douglas Rex at a glance
- Provider
- Douglas Rex
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Indianapolis, IN
- Medical school
- Indiana University School of Medicine
- Graduated
- 1980
- NPI registered
- 2006
- NPI
- 1164486643
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Douglas Rex practice?
Douglas Rex, M.D. is based in Indianapolis, IN and is affiliated with 3 ambulatory surgery centers: Glen Lehman Endoscopy Suite in Indianapolis, IN, Indiana Endoscopy Centers LLC in Indianapolis, IN, and Beltway Surgery Centers LLC in Indianapolis, IN. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Douglas Rex's NPI number?
Douglas Rex's National Provider Identifier (NPI) is 1164486643, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
Where did Douglas Rex go to medical school?
Douglas Rex, M.D. attended Indiana University School of Medicine, graduating in 1980.
How many Gastroenterology providers in Indiana work at ambulatory surgery centers?
100 Gastroenterology surgeons and proceduralists in Indiana are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Douglas Rex among them. The Indiana Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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