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Hospitalist

Sergey Zasypayko, MD

Works at hospitals in West Islip, NY · Jamaica, NY · New York

Summary

Sergey Zasypayko, MD (Hospitalist) is listed by Medicare at 2 hospitals in West Islip, NY and Jamaica, NY. NPI 1992961775. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Sergey Zasypayko, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
29Years since medical school (graduated 1997)
MaleGender (as listed)
City Medical of Upper East Side PLLCGroup practice (+2 more)

Quick answers

Which hospitals does Sergey Zasypayko work at?
Medicare's official clinician data lists Sergey Zasypayko at 2 hospitals: Good Samaritan Hospital Medical Center and Jamaica Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sergey Zasypayko see patients?
Medicare's clinician data lists 5 practice locations, including West Islip, NY, Jamaica, NY and Milford, CT. Call before your visit to confirm the address.
What is Sergey Zasypayko's specialty?
Medicare lists Hospitalist as the primary specialty, and also Emergency Medicine and Internal Medicine.
Does Sergey Zasypayko accept Medicare assignment?
Yes. Medicare's clinician data says Sergey Zasypayko 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 Sergey Zasypayko?
(631) 376-3000, as listed in official Medicare / NPI Registry data.
What is Sergey Zasypayko's NPI number?
1992961775. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sergey Zasypayko works

Medicare's Facility Affiliation Data lists Sergey Zasypayko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Sergey Zasypayko is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Sergey Zasypayko as a member of these groups (CMS data updated 2026-10-02).

  • City Medical of Upper East Side PLLC658 clinicians in the group
  • Southwest Suffolk Medical PC199 clinicians in the group
  • Pulmonary Care, PC8 clinicians in the group

Specialties

Find other Hospitalist doctors in New York →

Other hospitalists in West Islip

Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.

All hospitalists in West Islip →

Clinician information

CredentialMD
Graduation year1997
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992961775
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians