Naisha Williams, RN
NPI 1649779851ActiveIndividual· Nurse Practitioner· Columbia, MD
Nurse Practitioner (RN) with Maryland Family Care Inc, practicing in Columbia, Maryland. Their prescriptions cost Medicare Part D more than their services did: $133,040 for 1,129 claims, against $13,378 paid for services in 2024. Pfizer Inc. was the largest of 11 companies reporting payments in 2025, $695.47 in all, mostly food and beverage. Lists Mercy Medical Center Inc as a hospital affiliation.
Overview
| NPI | 1649779851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN |
| Sole proprietor | Yes |
| NPI issued | Feb 3, 2018 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | MD005349 | MD |
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 (DC); Practitioner - Nurse Practitioner (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 219 across 17 procedure codes |
| Paid by Medicare | $13,378 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,129 · 2,272 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $133,040 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Maryland Family Care IncReisterstown, MD · 157 clinicians
Hospital affiliation
- Mercy Medical Center IncBaltimore, MD
Industry payments (Open Payments)
- 2025$695.47 · 31 payments from 11 companies
- 2024$731.33 · 24 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $168.42 | 7 |
| Astrazeneca Pharmaceuticals LP | $111.69 | 5 |
| Novo Nordisk Inc | $109.76 | 5 |
| Lilly USA, LLC | $66.86 | 3 |
| Exact Sciences Corporation | $44.99 | 2 |
What the 2025 payments were for
- Food and Beverage$695.47 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 nurse practitioners in Columbia · All nurse practitioners in Maryland