Tammy Marie Castles, FNP-BC
NPI 1295517373ActiveIndividual· Family Medicine· Hackettstown, NJ
Family Medicine (FNP-BC) with Primary Care Partners LLC, practicing in Hackettstown, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $18,965 for 220 claims, against $6,912 paid for services in 2024. Pfizer Inc. was the largest of 8 companies reporting payments in 2025, $633.56 in all, mostly food and beverage. Lists Ahs Hospital Corp as a hospital affiliation.
Overview
| NPI | 1295517373 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-BC |
| Sole proprietor | No |
| NPI issued | Oct 16, 2023 |
| Last updated in NPPES | Dec 21, 2023 |
| Certified by provider | Dec 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 26NJ14936600 | NJ |
| Nurse Practitioner, Family | 363LF0000X | 26NJ14936600 | NJ |
| Nurse Practitioner | 363L00000X | 26NJ14936600 | NJ |
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 (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 124 across 19 procedure codes |
| Paid by Medicare | $6,912 |
Part D prescriptions in 2024
| Prescriptions (claims) | 220 · 356 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $18,965 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Primary Care Partners LLCMorristown, NJ · 76 clinicians
Hospital affiliation
- Ahs Hospital CorpHackettstown, NJ
Industry payments (Open Payments)
- 2025$633.56 · 38 payments from 8 companies
- 2024$321.54 · 19 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $221.42 | 15 |
| Novo Nordisk Inc | $156.17 | 9 |
| Astrazeneca Pharmaceuticals LP | $50.04 | 3 |
| Abbvie Inc. | $48.72 | 3 |
| Exact Sciences Corporation | $46.46 | 2 |
What the 2025 payments were for
- Food and Beverage$633.56 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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