Anna Williamson, FNP
NPI 1447807805ActiveIndividual· Nurse Practitioner· Hattiesburg, MS
Nurse Practitioner (FNP) with Hattiesburg Clinic PA, practicing in Hattiesburg, Mississippi. Their prescriptions cost Medicare Part D more than their services did: $841,500 for 3,987 claims, against $67,409 paid for services in 2024. Abbvie Inc. was the largest of 12 companies reporting payments in 2025, $740.12 in all, mostly food and beverage. Lists Forrest General Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1447807805 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | Yes |
| NPI issued | Aug 21, 2019 |
| Last updated in NPPES | Sep 15, 2021 |
| Certified by provider | Sep 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 903379 | MS |
| Nurse Practitioner, Family | 363LF0000X | 205062 | LA |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 804 |
|---|---|
| Services billed | 1,056 across 18 procedure codes |
| Paid by Medicare | $67,409 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,987 · 6,622 30-day fills |
|---|---|
| Patients | 1,274 |
| Total drug cost | $841,500 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Hattiesburg Clinic PAHattiesburg, MS · 537 clinicians
Hospital affiliations
- Forrest General HospitalHattiesburg, MS
- Highland Community HospitalPicayune, MS
- Marion General HospitalColumbia, MS
Industry payments (Open Payments)
- 2025$740.12 · 52 payments from 12 companies
- 2024$1,064 · 75 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $466.72 | 37 |
| Regeneron Healthcare Solutions, Inc. | $57.19 | 2 |
| Janssen Biotech, Inc. | $55.16 | 3 |
| Celltrion USA Inc. | $27.44 | 2 |
| Enterra Medical, Inc. | $26.10 | 1 |
What the 2025 payments were for
- Food and Beverage$740.12 · 52 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 80 nurse practitioners in Hattiesburg · All nurse practitioners in Mississippi