Quick answers
- Which hospitals does Alexey Yanilshtein work at?
- Medicare's official clinician data lists Alexey Yanilshtein at 2 hospitals: Mercy Medical Center and NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexey Yanilshtein see patients?
- Medicare's clinician data lists 2 practice locations, including Rockville Centre, NY and Syosset, NY. Call before your visit to confirm the address.
- What is Alexey Yanilshtein's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Alexey Yanilshtein accept Medicare assignment?
- Medicare's clinician data says Alexey Yanilshtein may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Alexey Yanilshtein offer telehealth?
- Medicare's clinician data says Alexey Yanilshtein offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alexey Yanilshtein?
- (516) 490-9060, as listed in official Medicare / NPI Registry data.
- What is Alexey Yanilshtein's NPI number?
- 1770840688. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexey Yanilshtein works
Medicare's Facility Affiliation Data lists Alexey Yanilshtein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · CCN 330259
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where Alexey Yanilshtein is enrolled with Medicare (CMS data updated 2026-10-02).
- 30 Hempstead Ave, Suite 144Rockville Centre, NY 11570 (516) 490‑9060
- 40 Queens St, Unit 161Syosset, NY 11791 (718) 806‑1434
Group practices
Medicare enrollment lists Alexey Yanilshtein as a member of these groups (CMS data updated 2026-10-02).
- Medical Care Associates PLLC3 clinicians in the group
- Star Medical Care Solutions PC3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Rockville Centre
Clinicians with the same Medicare primary specialty in Rockville Centre, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1770840688 |
| 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