Marc Rybstein, M.D.
NPI 1538393822ActiveIndividual· Internal Medicine, Cardiovascular Disease· Brooklyn, NY
Internal Medicine, Cardiovascular Disease (M.D.) in Brooklyn, New York, trained at State University of New York at Stony Brook, School of Medicine (class of 2006). In 2024 Medicare paid $540,159 for 753 patients, and Part D covered 1,111 of their prescriptions, 86% of them generic. Novo Nordisk Inc was the largest of 3 companies reporting payments in 2025, $90.52 in all, mostly food and beverage.
Overview
| NPI | 1538393822 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 14, 2009 |
| Last updated in NPPES | Feb 12, 2026 |
| Certified by provider | Feb 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 253288 | 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 - Cardiovascular Disease (Cardiology) (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 753 |
|---|---|
| Services billed | 4,986 across 88 procedure codes |
| Paid by Medicare | $540,159 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,111 · 2,921 30-day fills |
|---|---|
| Patients | 288 |
| Total drug cost | $191,077 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical groups
- Nicholas R Halper MD PCRockville Centre, NY · 7 clinicians
- Ronald C Fagan MD PCFarmingdale, NY · 4 clinicians
- Mkr Medical PCBrooklyn, NY · 2 clinicians
Industry payments (Open Payments)
- 2025$90.52 · 4 payments from 3 companies
- 2024$271.31 · 13 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $43.54 | 2 |
| Amgen Inc. | $29.55 | 1 |
| Beta Bionics, Inc. | $17.43 | 1 |
What the 2025 payments were for
- Food and Beverage$90.52 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in Brooklyn
- 1003082850
- 1013194711
- 1033176813
- 1033316047
- 1043213440
- 1043275092
- 1043405541
- 1053322198
- 1083877666
- 1093794661
- 1104052570
- 1104856780
All 311 cardiologists in Brooklyn · All cardiologists in New York