Courtney Zak, PA-C
NPI 1558023317ActiveIndividual· Physician Assistant· Flagstaff, AZ
Physician Assistant (PA-C) with Northern Arizona Healthcare Corporation and 2 other groups, practicing in Flagstaff, Arizona. 211 Medicare patients in 2024, $23,936 paid; nearly all of their 107 Part D prescriptions were generic (99%). Bioventus LLC was the largest of 4 companies reporting payments in 2025, $129.77 in all, mostly food and beverage. Lists Flagstaff Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1558023317 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 8, 2021 |
| Last updated in NPPES | Aug 15, 2024 |
| Certified by provider | Aug 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 10477 | AZ |
| Physician Assistant, Medical | 363AM0700X | — | — |
| Physician Assistant, Medical | 363AM0700X | PA2021-0115 | NM |
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 (AZ); Practitioner - Physician Assistant (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 211 |
|---|---|
| Services billed | 1,056 across 37 procedure codes |
| Paid by Medicare | $23,936 |
Part D prescriptions in 2024
| Prescriptions (claims) | 107 · 109 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $974.13 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Northern Arizona Healthcare CorporationFlagstaff, AZ · 385 clinicians
- Winslow Memorial Hospital IncWinslow, AZ · 42 clinicians
- Aurora Medical Associates LLCFlagstaff, AZ · 4 clinicians
Hospital affiliations
- Flagstaff Medical CenterFlagstaff, AZ
- Verde Valley Medical CenterCottonwood, AZ
Industry payments (Open Payments)
- 2025$129.77 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bioventus LLC | $57.33 | 2 |
| Orthofix Medical, Inc. | $37.72 | 2 |
| Impactortho, Inc. | $21.15 | 1 |
| Vericel Corporation | $13.57 | 1 |
What the 2025 payments were for
- Food and Beverage$129.77 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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