Perihan Simpson Warren, FNP-C
Nurse Practitioner, Family (FNP-C) in Wilmington, North Carolina, licensed in NC, with an NPI issued in July 2015. Their prescriptions cost Medicare Part D more than their services did: $1,253,871 for 2,273 claims, against $17,821 paid for services in 2024. Teva Pharmaceuticals USA, Inc. was the largest of 16 companies reporting payments in 2025, $2,286 in all, mostly food and beverage. Lists North Carolina Baptist Hospital as a hospital affiliation.
Overview
| NPI | 1659755098 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | Yes |
| NPI issued | Jul 15, 2015 |
| Last updated in NPPES | Aug 2, 2022 |
| Certified by provider | Aug 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 203102 | NC |
| Registered Nurse | 163W00000X | 203102 | NC |
| Nurse Practitioner, Psych/Mental Health | 363LP0808X | 203102 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 188 across 9 procedure codes |
| Paid by Medicare | $17,821 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,273 · 3,366 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $1,253,871 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Hospital affiliation
- North Carolina Baptist HospitalWinston-Salem, NC
Industry payments (Open Payments)
- 2025$2,286 · 137 payments from 16 companies
- 2024$2,221 · 134 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. | $581.89 | 36 |
| Vanda Pharmaceuticals Inc. | $302.19 | 19 |
| Neurocrine Biosciences, Inc. | $196.86 | 12 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $184.23 | 11 |
| Almatica Pharma LLC | $177.15 | 13 |
What the 2025 payments were for
- Food and Beverage$2,144 · 135 payments
- Consulting Fee$115.00 · 1 payment
- Education$27.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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