Stephen L. Ionna, M.D.
NPI 1174527659ActiveIndividual· Internal Medicine, Gastroenterology· Cincinnati, OH
Internal Medicine, Gastroenterology (M.D.) in Cincinnati, Ohio, trained at University of Cincinnati College of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $1,158,091 for 1,626 claims, against $149,383 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $315.14 in all, mostly food and beverage.
Overview
| NPI | 1174527659 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 13, 2005 |
| Last updated in NPPES | Mar 29, 2024 |
| Certified by provider | Mar 29, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 35-052611 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 821 |
|---|---|
| Services billed | 1,153 across 32 procedure codes |
| Paid by Medicare | $149,383 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,626 · 2,823 30-day fills |
|---|---|
| Patients | 463 |
| Total drug cost | $1,158,091 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Greater Cincinnati Digestive Health NetworkLebanon, OH · 14 clinicians
Hospital affiliations
- Christ HospitalCincinnati, OH
- Mercy Health - Clermont HospitalBatavia, OH
- Mercy Health-Anderson HospitalCincinnati, OH
Industry payments (Open Payments)
- 2025$315.14 · 17 payments from 10 companies
- 2024$571.92 · 47 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $111.24 | 6 |
| Madrigal Pharmaceuticals | $49.08 | 2 |
| Pfizer Inc. | $35.73 | 2 |
| Ardelyx, Inc. | $22.61 | 1 |
| Boston Scientific Corporation | $22.03 | 1 |
What the 2025 payments were for
- Food and Beverage$315.14 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 110 gastroenterologists in Cincinnati · All gastroenterologists in Ohio