John Michael Neisen, PA-C
NPI 1073180337ActiveIndividual· Physician Assistant· Oklahoma City, OK
Physician Assistant (PA-C) with Warren Clinic Inc and 2 other groups, practicing in Oklahoma City, Oklahoma. Mostly services rather than prescriptions: Medicare paid $3,379 for 39 patients in 2024, with only 20 Part D claims. Depuy Synthes Sales Inc. was the largest of 2 companies reporting payments in 2025, $88.40 in all, mostly food and beverage. Lists Integris Baptist Medical Center, Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1073180337 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 7, 2021 |
| Last updated in NPPES | Jul 28, 2026 |
| Certified by provider | Jul 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 4613 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 39 |
|---|---|
| Services billed | 50 across 19 procedure codes |
| Paid by Medicare | $3,379 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 20 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $537.28 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Warren Clinic IncTulsa, OK · 883 clinicians
- Integris Ambulatory Care CorporationSpencer, OK · 685 clinicians
- Care Communications LLCTulsa, OK · 33 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$88.40 · 3 payments from 2 companies
- 2024$44.39 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Depuy Synthes Sales Inc. | $73.40 | 2 |
| Biomerieux Inc | $15.00 | 1 |
What the 2025 payments were for
- Food and Beverage$88.40 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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