Christopher Greenhagen, PA-C
NPI 1356764195ActiveIndividual· Physician Assistant· Newkirk, OK
Physician Assistant (PA-C) in Newkirk, Oklahoma, trained at University of Oklahoma College of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $296,637 for 2,904 claims, against $9,541 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $652.26 in all, mostly food and beverage.
Overview
| NPI | 1356764195 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jan 30, 2014 |
| Last updated in NPPES | Sep 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 2378 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 600 across 28 procedure codes |
| Paid by Medicare | $9,541 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,904 · 6,434 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $296,637 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Physician Assistant |
Medical groups
- Bradley Bibb MD PLLCBlack Rock, AR · 69 clinicians
- Triad Health Systems LLCPonca City, OK · 6 clinicians
Hospital affiliations
- Integris Health Ponca CityPonca City, OK
- Stillwater Medical CenterStillwater, OK
Industry payments (Open Payments)
- 2025$652.26 · 45 payments from 10 companies
- 2024$58.51 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $204.22 | 17 |
| Astrazeneca Pharmaceuticals LP | $175.25 | 14 |
| Glaxosmithkline, LLC. | $73.49 | 4 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $57.37 | 2 |
| Lundbeck LLC | $49.34 | 2 |
What the 2025 payments were for
- Food and Beverage$652.26 · 45 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other physician assistants in Newkirk
- 1013586445