Heather Lynn Williamson, ARNP
NPI 1841750833ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Oklahoma City, OK
Nurse Practitioner, Psych/Mental Health (ARNP) with Oklahoma Mental Health Council, practicing in Oklahoma City, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $190,975 for 997 claims, against $2,895 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $93.39 in all, mostly food and beverage.
Overview
| NPI | 1841750833 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Mar 25, 2019 |
| Last updated in NPPES | Jun 18, 2021 |
| Certified by provider | Jun 18, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 0097747 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 14 |
|---|---|
| Services billed | 68 across 3 procedure codes |
| Paid by Medicare | $2,895 |
Part D prescriptions in 2024
| Prescriptions (claims) | 997 · 1,513 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $190,975 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Oklahoma Mental Health CouncilOklahoma City, OK · 69 clinicians
Industry payments (Open Payments)
- 2025$93.39 · 6 payments from 4 companies
- 2024$139.71 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $46.67 | 3 |
| Lundbeck LLC | $16.42 | 1 |
| Teva Pharmaceuticals USA, Inc. | $16.37 | 1 |
| Janssen Pharmaceuticals, Inc | $13.93 | 1 |
What the 2025 payments were for
- Food and Beverage$93.39 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 103 psychiatric nurse practitioners in Oklahoma City · All psychiatric nurse practitioners in Oklahoma