Anna Zajac, MD
NPI 1578794335ActiveIndividual· Family Medicine· Hillsborough, NJ
Family Medicine (MD) with Rwjbh Primary Care Services, practicing in Hillsborough, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $303,250 for 3,912 claims, against $30,923 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $140.88 in all, mostly food and beverage. Lists Robert Wood Johnson University Hospital - Somerset as a hospital affiliation.
Overview
| NPI | 1578794335 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 28, 2009 |
| Last updated in NPPES | Mar 13, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 25MA08895800 | NJ |
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 - Family Practice (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 212 |
|---|---|
| Services billed | 603 across 22 procedure codes |
| Paid by Medicare | $30,923 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,912 · 8,254 30-day fills |
|---|---|
| Patients | 466 |
| Total drug cost | $303,250 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Rwjbh Primary Care ServicesEast Brunswick, NJ · 267 clinicians
Hospital affiliation
- Robert Wood Johnson University Hospital - SomersetSomerville, NJ
Other facilities
- Robert Wood Johnson Visiting Nurses, IncHome health agency · North Brunswick, NJ
Industry payments (Open Payments)
- 2025$140.88 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $124.09 | 1 |
| Merck Sharp & Dohme LLC | $16.79 | 1 |
What the 2025 payments were for
- Food and Beverage$140.88 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 39 family medicine physicians in Hillsborough · All family medicine physicians in New Jersey