Stephen MatterM.D.
Stephen Matter, M.D. is a Gastroenterology provider in Normal, IL affiliated with 2 ambulatory surgery centers in IL, as of July 2026.
- NPI1134228224
- Registered2006
- Centers2
- StateIL
- Class of1983
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.
Stephen Matter at a glance
- Provider
- Stephen Matter
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Normal, IL
- Medical school
- University of Oklahoma College of Medicine
- Graduated
- 1983
- NPI registered
- 2006
- NPI
- 1134228224
- 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 Stephen Matter practice?
Stephen Matter, M.D. is based in Normal, IL and is affiliated with 2 ambulatory surgery centers: Gastrointestinal Institute LLC in Normal, IL and Eastland Medical Plaza Surgicenter LLC in Bloomington, IL. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Stephen Matter's NPI number?
Stephen Matter's National Provider Identifier (NPI) is 1134228224, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
Where did Stephen Matter go to medical school?
Stephen Matter, M.D. attended University of Oklahoma College of Medicine, graduating in 1983.
How many Gastroenterology providers in Illinois work at ambulatory surgery centers?
122 Gastroenterology surgeons and proceduralists in Illinois are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Stephen Matter among them. The Illinois Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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