Stephen IonnaM.D.
Gastroenterology·Cincinnati, OH
Stephen Ionna, M.D. is a Gastroenterology provider in Cincinnati, OH affiliated with 1 ambulatory surgery center in OH, as of July 2026.
- NPI1174527659
- Registered2005
- Centers1
- StateOH
- Class of1985
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 Ionna at a glance
- Provider
- Stephen Ionna
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Cincinnati, OH
- Medical school
- University of Cincinnati College of Medicine
- Graduated
- 1985
- NPI registered
- 2005
- NPI
- 1174527659
- 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 Ionna practice?
Stephen Ionna, M.D. is based in Cincinnati, OH and is affiliated with 1 ambulatory surgery center: Anderson Endoscopy Center in Cincinnati, OH. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Stephen Ionna's NPI number?
Stephen Ionna's National Provider Identifier (NPI) is 1174527659, registered in 2005. Specialty on record: Gastroenterology; credential M.D.
Where did Stephen Ionna go to medical school?
Stephen Ionna, M.D. attended University of Cincinnati College of Medicine, graduating in 1985.
How many Gastroenterology providers in Ohio work at ambulatory surgery centers?
184 Gastroenterology surgeons and proceduralists in Ohio are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Stephen Ionna among them. The Ohio Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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