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Obstetrics/Gynecology

Alexandra Derosa, MD

Works at hospitals in Buffalo, NY · New York

Summary

Alexandra Derosa, MD (Obstetrics/Gynecology) is listed by Medicare at 1 hospital in Buffalo, NY. NPI 1861954679. 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 Alexandra Derosa, 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

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
6Years since medical school (graduated 2020)
State University Of New York At Buffalo School Of MedicineMedical school
FemaleGender (as listed)
General Physician PCGroup practice

Quick answers

Which hospitals does Alexandra Derosa work at?
Medicare's official clinician data lists Alexandra Derosa at 1 hospital: Kaleida Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Alexandra Derosa see patients?
Medicare's clinician data lists 2 practice locations, including Dunkirk, NY and Buffalo, NY. Call before your visit to confirm the address.
What is Alexandra Derosa's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Alexandra Derosa accept Medicare assignment?
Yes. Medicare's clinician data says Alexandra Derosa 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 Alexandra Derosa?
(716) 710-8266, as listed in official Medicare / NPI Registry data.
What is Alexandra Derosa's NPI number?
1861954679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Alexandra Derosa works

Medicare's Facility Affiliation Data lists Alexandra Derosa 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 Alexandra Derosa is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Alexandra Derosa as a member of this group (CMS data updated 2026-10-02).

  • General Physician PC501 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in New York →

Other OB-GYNs in Dunkirk

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

All OB-GYNs in Dunkirk →

Clinician information

CredentialMD
Medical schoolState University Of New York At Buffalo School Of Medicine
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861954679
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