Maria Gemma Williams, FNP
NPI 1619446572ActiveIndividual· Nurse Practitioner, Family· Mahwah, NJ
Nurse Practitioner, Family (FNP) with Valley Physician Services PC, practicing in Mahwah, New Jersey. 362 Medicare patients in 2024, $45,439 paid; nearly all of their 510 Part D prescriptions were generic (91%). Lists Valley Hospital as a hospital affiliation.
Overview
| NPI | 1619446572 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Nov 20, 2018 |
| Last updated in NPPES | Nov 20, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 26NJ00839100 | 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 | 362 |
|---|---|
| Services billed | 801 across 55 procedure codes |
| Paid by Medicare | $45,439 |
Part D prescriptions in 2024
| Prescriptions (claims) | 510 · 959 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $38,356 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Valley Physician Services PCReading, PA · 592 clinicians
Hospital affiliation
- Valley HospitalParamus, NJ
Other facilities
- Valley Home Care Inc.Home health agency · Paramus, NJ
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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