Anna Chernyak, MD
NPI 1558437665ActiveIndividual· Internal Medicine· Union, NJ
Internal Medicine (MD) in Union, New Jersey, licensed in NJ, with an NPI issued in November 2006. Their prescriptions cost Medicare Part D more than their services did: $1,023,485 for 7,396 claims, against $97,595 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $1,093 in all, mostly food and beverage.
Overview
| NPI | 1558437665 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 28, 2006 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 25MA06605400 | 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 - Internal Medicine (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 108 |
|---|---|
| Services billed | 1,401 across 38 procedure codes |
| Paid by Medicare | $97,595 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,396 · 12,688 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $1,023,485 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1978 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$1,093 · 64 payments from 14 companies
- 2024$1,007 · 61 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $392.33 | 20 |
| Abbvie Inc. | $211.85 | 17 |
| Teva Pharmaceuticals USA, Inc. | $88.71 | 5 |
| Lilly USA, LLC | $81.24 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $74.60 | 5 |
What the 2025 payments were for
- Food and Beverage$1,093 · 64 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 39 internal medicine physicians in Union · All internal medicine physicians in New Jersey