John P. Czarnecki, M.D.
NPI 1932198645ActiveIndividual· Internal Medicine, Gastroenterology· Cincinnati, OH
Internal Medicine, Gastroenterology (M.D.) in Cincinnati, Ohio, trained at Northwestern University Feinberg Medical School (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $475,238 for 926 claims, against $67,065 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2024, $174.06 in all, mostly food and beverage.
Overview
| NPI | 1932198645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 14, 2005 |
| Last updated in NPPES | Nov 5, 2026 |
| Certified by provider | Nov 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 35079091 | OH |
| Internal Medicine, Gastroenterology | 207RG0100X | 036168516 | IL |
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 (IL); Practitioner - Gastroenterology (OH); Practitioner - Gastroenterology (VT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 272 |
|---|---|
| Services billed | 1,671 across 38 procedure codes |
| Paid by Medicare | $67,065 |
Part D prescriptions in 2024
| Prescriptions (claims) | 926 · 1,492 30-day fills |
|---|---|
| Patients | 373 |
| Total drug cost | $475,238 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
Medical groups
- Adena Medical Group LLCChillicothe, OH · 386 clinicians
- Chicago Gastro LLCChicago, IL · 5 clinicians
Hospital affiliations
- Adena Regional Medical CenterChillicothe, OH
- Porter Hospital IncMiddlebury, VT
Industry payments (Open Payments)
- 2024$174.06 · 18 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $160.50 | 17 |
| Intercept Pharmaceuticals, Inc. | $13.56 | 1 |
What the 2024 payments were for
- Food and Beverage$174.06 · 18 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