Katherine Nall Birrer, PA-S
NPI 1003292368ActiveIndividual· Physician Assistant· Spokane, WA
Physician Assistant (PA-S) with Providence Health and Services Washington, practicing in Spokane, Washington. Their prescriptions cost Medicare Part D more than their services did: $71,512 for 946 claims, against $5,950 paid for services in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $270.81 in all, mostly food and beverage. Lists Prov Sacred Hrt Med Ctr & Childs Hosp. and 1 other hospital as hospital affiliations.
Overview
| NPI | 1003292368 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-S |
| Sole proprietor | No |
| NPI issued | Aug 9, 2015 |
| Last updated in NPPES | Mar 24, 2023 |
| Certified by provider | Mar 24, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA60739072 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 60 across 8 procedure codes |
| Paid by Medicare | $5,950 |
Part D prescriptions in 2024
| Prescriptions (claims) | 946 · 1,238 30-day fills |
|---|---|
| Patients | 614 |
| Total drug cost | $71,512 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Providence Health and Services WashingtonSpokane, WA · 784 clinicians
Hospital affiliations
- Prov Sacred Hrt Med Ctr & Childs Hosp.Spokane, WA
- Providence Holy Family HospitalSpokane, WA
Industry payments (Open Payments)
- 2025$270.81 · 4 payments from 2 companies
- 2024$121.95 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $239.00 | 2 |
| Regeneron Healthcare Solutions, Inc. | $31.81 | 2 |
What the 2025 payments were for
- Food and Beverage$181.81 · 3 payments
- Education$89.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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