John Carl Onderko, PAC
NPI 1548231863ActiveIndividual· Physician Assistant· Johnstown, PA
Physician Assistant (PAC) in Johnstown, Pennsylvania, licensed in PA, with an NPI issued in January 2006. Their prescriptions cost Medicare Part D more than their services did: $256,236 for 3,871 claims, against $5,474 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2024, $279.55 in all, mostly food and beverage. Lists Conemaugh Memorial Medical Center as a hospital affiliation.
Overview
| NPI | 1548231863 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Jan 27, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | MA000154L | PA |
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 - Physician Assistant (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 48 |
|---|---|
| Services billed | 136 across 15 procedure codes |
| Paid by Medicare | $5,474 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,871 · 9,041 30-day fills |
|---|---|
| Patients | 526 |
| Total drug cost | $256,236 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Physician Assistant |
Hospital affiliation
- Conemaugh Memorial Medical CenterJohnstown, PA
Industry payments (Open Payments)
- 2024$279.55 · 3 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $125.00 | 1 |
| Astrazeneca Pharmaceuticals LP | $125.00 | 1 |
| Kyowa Kirin, Inc. | $29.55 | 1 |
What the 2024 payments were for
- Food and Beverage$279.55 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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