Leah Kim Williams, NP
NPI 1548005440ActiveIndividual· Nurse Practitioner· Fort Smith, AR
Nurse Practitioner (NP) with Sebastian Physician Services, PLLC, practicing in Fort Smith, Arkansas. Their prescriptions cost Medicare Part D more than their services did: $6,206 for 134 claims, against $2,199 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $139.95 in all, mostly food and beverage. Lists Baptist Health - Fort Smith as a hospital affiliation.
Overview
| NPI | 1548005440 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Jul 1, 2024 |
| Last updated in NPPES | Jul 1, 2024 |
| Certified by provider | Jul 1, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 227957 | AR |
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 (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 30 across 3 procedure codes |
| Paid by Medicare | $2,199 |
Part D prescriptions in 2024
| Prescriptions (claims) | 134 · 138 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $6,206 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Sebastian Physician Services, PLLCFort Smith, AR · 35 clinicians
Hospital affiliation
- Baptist Health - Fort SmithFort Smith, AR
Industry payments (Open Payments)
- 2025$139.95 · 2 payments from 2 companies
- 2024$26.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $124.96 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $14.99 | 1 |
What the 2025 payments were for
- Food and Beverage$139.95 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 50 nurse practitioners in Fort Smith · All nurse practitioners in Arkansas