Quick answers
- Which hospitals does Alla Khalfin work at?
- Medicare's official clinician data lists Alla Khalfin at 3 hospitals: Good Samaritan Hospital Medical Center, North Shore University Hospital and Northwell Hospital Glen Cove. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alla Khalfin see patients?
- Medicare's clinician data lists 1 practice location in Syosset, NY. Call before your visit to confirm the address.
- What is Alla Khalfin's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Alla Khalfin accept Medicare assignment?
- Yes. Medicare's clinician data says Alla Khalfin 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 Alla Khalfin offer telehealth?
- Medicare's clinician data says Alla Khalfin offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alla Khalfin?
- (516) 802-4884, as listed in official Medicare / NPI Registry data.
- What is Alla Khalfin's NPI number?
- 1528259843. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alla Khalfin works
Medicare's Facility Affiliation Data lists Alla Khalfin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · CCN 330181
Practice locations
Addresses where Alla Khalfin is enrolled with Medicare (CMS data updated 2026-10-02).
- 175 Jericho TpkeSyosset, NY 11791 (516) 802‑4884
Specialties
- Endocrinologyprimary
Other endocrinologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1528259843 |
| 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