Quick answers
- Which hospitals does Gregory D. Rubinfeld work at?
- Medicare's official clinician data lists Gregory D. Rubinfeld at 2 hospitals: Long Island Jewish Medical Center and North Shore University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory D. Rubinfeld see patients?
- Medicare's clinician data lists 2 practice locations, including New Hyde Park, NY and Seaford, NY. Call before your visit to confirm the address.
- What is Gregory D. Rubinfeld's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Gregory D. Rubinfeld accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory D. Rubinfeld 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 Gregory D. Rubinfeld offer telehealth?
- Medicare's clinician data says Gregory D. Rubinfeld offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory D. Rubinfeld?
- (718) 470-7000, as listed in official Medicare / NPI Registry data.
- What is Gregory D. Rubinfeld's NPI number?
- 1063946283. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory D. Rubinfeld works
Medicare's Facility Affiliation Data lists Gregory D. Rubinfeld at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
Practice locations
Addresses where Gregory D. Rubinfeld is enrolled with Medicare (CMS data updated 2026-10-02).
- 27005 75th AveNew Hyde Park, NY 11040 (718) 470‑7000
- 850 Hicksville Rd, Suite 104Seaford, NY 11783 (516) 809‑4200
Group practices
Medicare enrollment lists Gregory D. Rubinfeld as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Northwell Healthcare Inc18 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in New Hyde Park
Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1063946283 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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