Mary Cathryn Earnhardt, MD
NPI 1164080800ActiveIndividual· Obstetrics & Gynecology· Branchburg, NJ
Obstetrics & Gynecology (MD) with Goncharov Medical PC, practicing in Branchburg, New Jersey. Enrolled in Medicare as practitioner - obstetrics/gynecology and practitioner - obstetrics/gynecology. Biogen, Inc. was the largest of 8 companies reporting payments in 2025, $495.36 in all, mostly food and beverage.
Overview
| NPI | 1164080800 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 29, 2019 |
| Last updated in NPPES | Oct 13, 2026 |
| Certified by provider | Oct 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 25MA13076700 | NJ |
| Obstetrics & Gynecology, Obstetrics | 207VX0000X | 324131 | NY |
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 - Obstetrics/Gynecology (NJ); Practitioner - Obstetrics/Gynecology (NY) |
|---|
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Goncharov Medical PCBrooklyn, NY · 21 clinicians
Industry payments (Open Payments)
- 2025$495.36 · 22 payments from 8 companies
- 2024$584.48 · 25 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $133.65 | 5 |
| Evofem Biosciences, Inc. | $106.19 | 8 |
| Mayne Pharma Commercial LLC | $72.39 | 3 |
| Baxter Healthcare | $48.70 | 1 |
| Organon LLC | $46.20 | 2 |
What the 2025 payments were for
- Food and Beverage$495.36 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Branchburg
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- 1164445045
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- 1588693451
- 1669653309
- 1760662381