Stacy-Ann Grenan, NP
NPI 1679018444ActiveIndividual· Nurse Practitioner, Gerontology· Roslyn, NY
Nurse Practitioner, Gerontology (NP) in Roslyn, New York, trained at State University of New York at Stony Brook, School of Medicine (class of 2016). Medicare paid $1,062 for services to 24 patients in 2024. Chiesi USA, Inc. was the largest of 2 companies reporting payments in 2025, $83.91 in all, mostly food and beverage.
Overview
| NPI | 1679018444 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Jan 3, 2017 |
| Last updated in NPPES | Jan 3, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 307898 | NY |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 27 across 8 procedure codes |
| Paid by Medicare | $1,062 |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Samaritan Medical Services PCWest Islip, NY · 354 clinicians
Hospital affiliation
- St Francis Hospital - the Heart CenterRoslyn, NY
Industry payments (Open Payments)
- 2025$83.91 · 4 payments from 2 companies
- 2024$41.48 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Chiesi USA, Inc. | $57.24 | 3 |
| Vertex Pharmaceuticals Incorporated | $26.67 | 1 |
What the 2025 payments were for
- Food and Beverage$83.91 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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