Tammy M. Davis, DNP, FNP-C
NPI 1407685977ActiveIndividual· Nurse Practitioner· Everett, WA
Nurse Practitioner (DNP, FNP-C) with Optum Care Washington PLLC, practicing in Everett, Washington. Their prescriptions cost Medicare Part D more than their services did: $35,938 for 82 claims, against $6,821 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $157.58 in all, mostly food and beverage. Lists Providence Regional Medical Center Everett and 1 other hospital as hospital affiliations.
Overview
| NPI | 1407685977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP, FNP-C |
| Sole proprietor | Yes |
| NPI issued | Jul 31, 2024 |
| Last updated in NPPES | Sep 1, 2026 |
| Certified by provider | Sep 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | AP61592176 | WA |
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 - Nurse Practitioner (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 212 across 18 procedure codes |
| Paid by Medicare | $6,821 |
Part D prescriptions in 2024
| Prescriptions (claims) | 82 · 100 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $35,938 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Optum Care Washington PLLCEverett, WA · 683 clinicians
Hospital affiliations
- Providence Regional Medical Center EverettEverett, WA
- Whidbeyhealth Medical CenterCoupeville, WA
Industry payments (Open Payments)
- 2025$157.58 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $79.66 | 1 |
| Amgen Inc. | $47.83 | 1 |
| Novartis Pharmaceuticals Corporation | $30.09 | 1 |
What the 2025 payments were for
- Food and Beverage$157.58 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 119 nurse practitioners in Everett · All nurse practitioners in Washington