Gregory C. Zenni, M.D.
NPI 1285664789ActiveIndividual· Surgery, Vascular Surgery· Cincinnati, OH
Surgery, Vascular Surgery (M.D.) in Cincinnati, Ohio, trained at Saint Louis University School of Medicine (class of 1986). In 2024 Medicare paid $79,654 for 1,003 patients, and Part D covered 173 of their prescriptions, 83% of them generic. W. L. Gore & Associates, Inc. was the largest of 2 companies reporting payments in 2025, $141.38 in all, mostly food and beverage.
Overview
| NPI | 1285664789 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 3, 2006 |
| Last updated in NPPES | Dec 17, 2019 |
| Certified by provider | Dec 17, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 35065279Z | OH |
| Surgery, Vascular Surgery | 2086S0129X | 29635 | KY |
| Surgery | 208600000X | 35065279Z | OH |
| Surgery | 208600000X | 29635 | KY |
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 - Vascular Surgery (KY); Practitioner - Vascular Surgery (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,003 |
|---|---|
| Services billed | 1,305 across 72 procedure codes |
| Paid by Medicare | $79,654 |
Part D prescriptions in 2024
| Prescriptions (claims) | 173 · 248 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $22,542 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Vascular Surgery |
| Secondary specialties | Peripheral Vascular Disease |
Medical group
- Mercy Health Physicians Cincinnati Specialty Care LLCCincinnati, OH · 349 clinicians
Hospital affiliations
- Mercy Health - Clermont HospitalBatavia, OH
- Mercy Health - Fairfield HospitalFairfield, OH
- Mercy Health - West HospitalCincinnati, OH
- Mercy Health-Anderson HospitalCincinnati, OH
- The Jewish Hospital-Mercy HealthCincinnati, OH
Industry payments (Open Payments)
- 2025$141.38 · 3 payments from 2 companies
- 2024$50.42 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| W. L. Gore & Associates, Inc. | $127.83 | 2 |
| Lemaitre Vascular, Inc. | $13.55 | 1 |
What the 2025 payments were for
- Food and Beverage$141.38 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 vascular surgeons in Cincinnati · All vascular surgeons in Ohio