Quick answers
- Where does Marc K. Rybstein see patients?
- Medicare's clinician data lists 4 practice locations, including Jackson Heights, NY, Farmingdale, NY and Rockville Centre, NY. Call before your visit to confirm the address.
- What is Marc K. Rybstein's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Marc K. Rybstein accept Medicare assignment?
- Yes. Medicare's clinician data says Marc K. Rybstein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Marc K. Rybstein offer telehealth?
- Medicare's clinician data says Marc K. Rybstein offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marc K. Rybstein?
- (718) 942-9355, as listed in official Medicare / NPI Registry data.
- What is Marc K. Rybstein's NPI number?
- 1538393822. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Marc K. Rybstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 37 -51 A 90th StJackson Heights, NY 11372 (718) 942‑9355
- 4900 Hempstead TpkeFarmingdale, NY 11735 (516) 752‑7000
- 55 Maple Ave, Suite 102Rockville Centre, NY 11570 (516) 536‑2221
- 828 Utica AveBrooklyn, NY 11203 (718) 303‑0851
Group practices
Medicare enrollment lists Marc K. Rybstein as a member of these groups (CMS data updated 2026-10-02).
- Nicholas R Halper MD PC7 clinicians in the group
- Ronald C Fagan MD PC4 clinicians in the group
- MKR Medical PC2 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538393822 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians