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Internal Medicine

Jill Ostrager, MD

Sees patients in New Rochelle, NY · Greenwich, CT · New York, Connecticut

Summary

Jill Ostrager, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in New Rochelle, NY and Greenwich, CT. NPI 1528087327. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jill Ostrager, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
33Years since medical school (graduated 1993)
Albany Medical College Of Union UniversityMedical school
FemaleGender (as listed)
Westchester Medical Group, P.CGroup practice

Quick answers

Where does Jill Ostrager see patients?
Medicare's clinician data lists 2 practice locations, including New Rochelle, NY and Greenwich, CT. Call before your visit to confirm the address.
What is Jill Ostrager's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jill Ostrager accept Medicare assignment?
Yes. Medicare's clinician data says Jill Ostrager 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 Jill Ostrager offer telehealth?
Medicare's clinician data says Jill Ostrager offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Jill Ostrager?
(914) 607-5800, as listed in official Medicare / NPI Registry data.
What is Jill Ostrager's NPI number?
1528087327. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

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

  • Westchester Medical Group, P.C415 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New Rochelle

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

All internal medicine doctors in New Rochelle →

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year1993
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1528087327
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians