Quick answers
- Which hospitals does Katya Ostrow work at?
- Medicare's official clinician data lists Katya Ostrow at 1 hospital: Lenox Hill Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katya Ostrow see patients?
- Medicare's clinician data lists 2 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is Katya Ostrow's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Katya Ostrow accept Medicare assignment?
- Yes. Medicare's clinician data says Katya Ostrow 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 Katya Ostrow?
- (212) 460-7800, as listed in official Medicare / NPI Registry data.
- What is Katya Ostrow's NPI number?
- 1871943977. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katya Ostrow works
Medicare's Facility Affiliation Data lists Katya Ostrow at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lenox Hill HospitalNew York, NY · Acute Care Hospital · CCN 330119
Practice locations
Addresses where Katya Ostrow is enrolled with Medicare (CMS data updated 2026-10-02).
- 21 E 22nd StNew York, NY 10010 (212) 460‑7800
- 215 E 95th StNew York, NY 10128 (212) 996‑8000
Group practices
Medicare enrollment lists Katya Ostrow as a member of this group (CMS data updated 2026-10-02).
- Advantagecare Physicians PC303 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871943977 |
| 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