Tiffany Villamarin, AGNP
NPI 1477265635ActiveIndividual· Nurse Practitioner, Adult Health· West Harrison, NY
Nurse Practitioner, Adult Health (AGNP) with Msk Harrison, practicing in West Harrison, New York. Their prescriptions cost Medicare Part D more than their services did: $2,884,918 for 866 claims, against $40,310 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 20 companies reporting payments in 2025, $859.21 in all, mostly food and beverage. Lists Norwalk Hospital as a hospital affiliation.
Overview
| NPI | 1477265635 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | AGNP |
| Sole proprietor | No |
| NPI issued | Dec 20, 2022 |
| Last updated in NPPES | Apr 6, 2026 |
| Certified by provider | Apr 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | F310820-01 | NY |
| Nurse Practitioner, Adult Health | 363LA2200X | 11560 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CT); Practitioner - Nurse Practitioner (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 141 |
|---|---|
| Services billed | 708 across 5 procedure codes |
| Paid by Medicare | $40,310 |
Part D prescriptions in 2024
| Prescriptions (claims) | 866 · 1,122 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $2,884,918 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Msk HarrisonWest Harrison, NY · 132 clinicians
Hospital affiliation
- Norwalk HospitalNorwalk, CT
Industry payments (Open Payments)
- 2025$859.21 · 38 payments from 20 companies
- 2024$2,014 · 96 payments from 30 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $138.20 | 6 |
| Celgene Corporation | $95.94 | 5 |
| Novartis Pharmaceuticals Corporation | $65.64 | 2 |
| Rigel Pharmaceuticals, Inc. | $54.99 | 2 |
| Incyte Corporation | $54.63 | 3 |
What the 2025 payments were for
- Food and Beverage$859.21 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner, Adult Health providers in West Harrison
- 1659824704
- 1760623805
- 1033871397
- 1518037639
- 1104336965
All Nurse Practitioner, Adult Health providers in New York →