Quick answers
- Which hospitals does Marissa S. Sydial work at?
- Medicare's official clinician data lists Marissa S. Sydial at 1 hospital: NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marissa S. Sydial see patients?
- Medicare's clinician data lists 5 practice locations, including Springfield Gardens, NY, Plainview, NY and Corona, NY. Call before your visit to confirm the address.
- What is Marissa S. Sydial's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Marissa S. Sydial accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa S. Sydial 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 Marissa S. Sydial?
- (516) 537-9061, as listed in official Medicare / NPI Registry data.
- What is Marissa S. Sydial's NPI number?
- 1336638063. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marissa S. Sydial works
Medicare's Facility Affiliation Data lists Marissa S. Sydial at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where Marissa S. Sydial is enrolled with Medicare (CMS data updated 2026-10-02).
- 13434 Springfield BlvdSpringfield Gardens, NY 11413
- 377 S Oyster Bay RdPlainview, NY 11803 (516) 537‑9061
- 5828 99th StCorona, NY 11368 (718) 502‑9867
- 5828 99th St CoronaCorona, NY 11368 (718) 502‑9867
- 595 Hempstead Tpke, Suite AWest Hempstead, NY 11552 (347) 493‑2952
Group practices
Medicare enrollment lists Marissa S. Sydial as a member of this group (CMS data updated 2026-10-02).
- North Shore Lij Urgent Care PC390 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336638063 |
| 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