Marina Isabel Guzman, FNP
NPI 1548456197ActiveIndividual· Nurse Practitioner, Family· Coram, NY
Nurse Practitioner, Family (FNP) with North Shore-Lij Medical PC, practicing in Coram, New York. Their prescriptions cost Medicare Part D more than their services did: $4,186,280 for 2,870 claims, against $11,192 paid for services in 2024. Gilead Sciences, Inc. reported $132.16 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1548456197 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | Yes |
| NPI issued | Sep 18, 2007 |
| Last updated in NPPES | Oct 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 339675 | NY |
| Registered Nurse | 163W00000X | 549631-1 | 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 | 49 |
|---|---|
| Services billed | 147 across 25 procedure codes |
| Paid by Medicare | $11,192 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,870 · 3,540 30-day fills |
|---|---|
| Patients | 155 |
| Total drug cost | $4,186,280 |
| Generic share | 56% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- North Shore-Lij Medical PCStaten Island, NY · 6,440 clinicians
Industry payments (Open Payments)
- 2025$132.16 · 1 payment from 1 company
- 2024$137.01 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $132.16 | 1 |
What the 2025 payments were for
- Food and Beverage$132.16 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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