Quick answers
- Which hospitals does Nicholas Sikalas work at?
- Medicare's official clinician data lists Nicholas Sikalas at 4 hospitals: North Shore University Hospital, Ns/Lij HS Huntington Hospital, Ns/Lij HS Southside Hospital and Plainview Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicholas Sikalas see patients?
- Medicare's clinician data lists 2 practice locations, including New Hyde Park, NY and Bay Shore, NY. Call before your visit to confirm the address.
- What is Nicholas Sikalas's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also General Surgery.
- Does Nicholas Sikalas accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas Sikalas 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 Nicholas Sikalas?
- (516) 328-9800, as listed in official Medicare / NPI Registry data.
- What is Nicholas Sikalas's NPI number?
- 1720307002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas Sikalas works
Medicare's Facility Affiliation Data lists Nicholas Sikalas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Ns/Lij HS Huntington HospitalHuntington, NY · Acute Care Hospital · CCN 330045
- Ns/Lij HS Southside HospitalBay Shore, NY · Acute Care Hospital · CCN 330043
- Plainview HospitalPlainview, NY · Acute Care Hospital · CCN 330331
Practice locations
Addresses where Nicholas Sikalas is enrolled with Medicare (CMS data updated 2026-10-02).
- 2001 Marcus Ave, Suite S50New Hyde Park, NY 11042 (516) 328‑9800
- 250 E Main StBay Shore, NY 11706 (631) 470‑1540
Group practices
Medicare enrollment lists Nicholas Sikalas as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- North Shore-Lij Medical Group at Huntington PC46 clinicians in the group
Specialties
- Vascular Surgeryprimary
- General Surgeryalso
Other vascular surgeons 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 | State University Of New York Downstate Medical Center |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720307002 |
| 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