Gannon Ryan Nyquist, PA-C
NPI 1134793169ActiveIndividual· Physician Assistant· Vallejo, CA
Physician Assistant (PA-C) with Providence Health and Services Oregon, practicing in Vallejo, California. Their prescriptions cost Medicare Part D more than their services did: $636,177 for 1,893 claims, against $37,359 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 6 companies reporting payments in 2025, $168.16 in all, mostly food and beverage. Lists Curry General Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1134793169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | May 14, 2021 |
| Last updated in NPPES | Sep 12, 2022 |
| Certified by provider | Sep 12, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA213297 | OR |
| Physician Assistant | 363A00000X | — | — |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 349 |
|---|---|
| Services billed | 499 across 7 procedure codes |
| Paid by Medicare | $37,359 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,893 · 2,385 30-day fills |
|---|---|
| Patients | 339 |
| Total drug cost | $636,177 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Providence Health and Services OregonMedford, OR · 170 clinicians
Hospital affiliations
- Curry General HospitalGold Beach, OR
- Fairchild Medical CenterYreka, CA
- Providence Medford Medical CenterMedford, OR
Industry payments (Open Payments)
- 2025$168.16 · 6 payments from 6 companies
- 2024$182.28 · 7 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $61.45 | 1 |
| Glaxosmithkline, LLC. | $30.35 | 1 |
| Regeneron Healthcare Solutions, Inc. | $22.88 | 1 |
| Madrigal Pharmaceuticals | $19.02 | 1 |
| Astrazeneca Pharmaceuticals LP | $17.84 | 1 |
What the 2025 payments were for
- Food and Beverage$168.16 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 245 physician assistants in Vallejo · All physician assistants in California