Vivian Wanjohi, MSN, AGACNP-BC
NPI 1851039200ActiveIndividual· Nurse Practitioner· New Haven, CT
Nurse Practitioner (MSN, AGACNP-BC) with Yale University, practicing in New Haven, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $164,420 for 153 claims, against $41,121 paid for services in 2024. Abbvie Inc. was the largest of 27 companies reporting payments in 2025, $1,221 in all, mostly food and beverage. Lists Yale-New Haven Hospital as a hospital affiliation.
Overview
| NPI | 1851039200 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN, AGACNP-BC |
| Sole proprietor | No |
| NPI issued | May 25, 2022 |
| Last updated in NPPES | Nov 3, 2025 |
| Certified by provider | Nov 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 11900 | CT |
| Registered Nurse | 163W00000X | 172972 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 110 |
|---|---|
| Services billed | 1,280 across 23 procedure codes |
| Paid by Medicare | $41,121 |
Part D prescriptions in 2024
| Prescriptions (claims) | 153 · 187 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $164,420 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$1,221 · 52 payments from 27 companies
- 2024$2,670 · 101 payments from 32 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $121.68 | 4 |
| Celgene Corporation | $109.91 | 4 |
| Incyte Corporation | $105.34 | 5 |
| Seagen Inc. | $87.99 | 1 |
| Array Biopharma Inc | $78.07 | 5 |
What the 2025 payments were for
- Food and Beverage$1,083 · 50 payments
- Education$137.98 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 120 nurse practitioners in New Haven · All nurse practitioners in Connecticut