Tammy Lynn Underwood, FNP-C
NPI 1902587405ActiveIndividual· Family Medicine· Claysville, PA
Family Medicine (FNP-C) in Claysville, Pennsylvania, trained at Georgetown University School of Medicine (class of 2023). Their prescriptions cost Medicare Part D more than their services did: $150,853 for 2,721 claims, against $15,720 paid for services in 2024. Novo Nordisk Inc was the largest of 14 companies reporting payments in 2025, $581.66 in all, mostly food and beverage.
Overview
| NPI | 1902587405 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Jul 27, 2023 |
| Last updated in NPPES | Jul 27, 2023 |
| Certified by provider | Jul 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | SP027909 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 296 across 39 procedure codes |
| Paid by Medicare | $15,720 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,721 · 4,208 30-day fills |
|---|---|
| Patients | 502 |
| Total drug cost | $150,853 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 2023 |
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Preferred Primary Care Physicians, Inc.Pittsburgh, PA · 88 clinicians
Hospital affiliation
- Washington Hospital, theWashington, PA
Industry payments (Open Payments)
- 2025$581.66 · 30 payments from 14 companies
- 2024$565.68 · 29 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $108.99 | 5 |
| Pfizer Inc. | $87.00 | 5 |
| Astrazeneca Pharmaceuticals LP | $60.21 | 4 |
| Glaxosmithkline, LLC. | $54.91 | 3 |
| Phathom Pharmaceuticals, Inc. | $45.74 | 3 |
What the 2025 payments were for
- Food and Beverage$581.66 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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