Nkechi Christine Onwuche, PMHNP-BC
Nurse Practitioner, Psych/Mental Health (PMHNP-BC) with Adventist Physician Services Inc and 1 other group, practicing in Washington, District of Columbia. Their prescriptions cost Medicare Part D more than their services did: $175,113 for 320 claims, against $1,530 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 10 companies reporting payments in 2025, $1,789 in all, mostly food and beverage. Lists Adventist Healthcare White Oak Medical Center as a hospital affiliation.
Overview
| NPI | 1326409988 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP-BC |
| Sole proprietor | No |
| NPI issued | Mar 10, 2016 |
| Last updated in NPPES | Oct 3, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 61040 | DC |
| Registered Nurse | 163W00000X | 601040 | DC |
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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 21 across 6 procedure codes |
| Paid by Medicare | $1,530 |
Part D prescriptions in 2024
| Prescriptions (claims) | 320 · 325 30-day fills |
|---|---|
| Patients | 69 |
| Total drug cost | $175,113 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Adventist Physician Services IncSilver Spring, MD · 148 clinicians
- Mbi Health Services LLCWashington, DC · 29 clinicians
Hospital affiliation
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD
Industry payments (Open Payments)
- 2025$1,789 · 83 payments from 10 companies
- 2024$1,215 · 53 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $482.49 | 26 |
| Lundbeck LLC | $333.96 | 16 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $249.80 | 12 |
| Alkermes, Inc. | $198.39 | 10 |
| Janssen Pharmaceuticals, Inc | $121.30 | 3 |
What the 2025 payments were for
- Food and Beverage$1,734 · 81 payments
- Education$54.54 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 269 psychiatric nurse practitioners in Washington · All psychiatric nurse practitioners in District of Columbia