Quick answers
- Which hospitals does Sandy Nissel-Horowitz work at?
- Medicare's official clinician data lists Sandy Nissel-Horowitz at 1 hospital: St Francis Hospital - The Heart Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sandy Nissel-Horowitz see patients?
- Medicare's clinician data lists 4 practice locations, including Roslyn, NY, Rockville Center, NY and Greenvale, NY. Call before your visit to confirm the address.
- What is Sandy Nissel-Horowitz's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Sandy Nissel-Horowitz accept Medicare assignment?
- Yes. Medicare's clinician data says Sandy Nissel-Horowitz 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.
- What is the phone number for Sandy Nissel-Horowitz?
- (516) 325-7310, as listed in official Medicare / NPI Registry data.
- What is Sandy Nissel-Horowitz's NPI number?
- 1053433995. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sandy Nissel-Horowitz works
Medicare's Facility Affiliation Data lists Sandy Nissel-Horowitz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
Practice locations
Addresses where Sandy Nissel-Horowitz is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Port Washington BlvdRoslyn, NY 11576
- 1000 N Village AveRockville Center, NY 11570
- 2200 Northern BlvdGreenvale, NY 11548 (516) 325‑7310
- 2200 Northern Blvd, Suite 100dGreenvale, NY 11548 (646) 293‑7500
Group practices
Medicare enrollment lists Sandy Nissel-Horowitz as a member of this group (CMS data updated 2026-10-02).
- CHS Physician Partners PC743 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Roslyn
Clinicians with the same Medicare primary specialty in Roslyn, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1978 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053433995 |
| 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