Quick answers
- Does Ambica C. Sastry accept Medicare assignment?
- Yes. Medicare's clinician data says Ambica C. Sastry accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Ambica C. Sastry see?
- In 2024, CMS data shows 52 Original Medicare patients and 91 services for Ambica C. Sastry. This counts Original Medicare only and measures volume, not quality.
- What is Ambica C. Sastry's NPI number?
- 1417489568. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Ambica C. Sastry, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 52 |
|---|---|
| Services billed to Medicare | 91 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)35 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)15 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol69%
- High blood pressure58%
- Arthritis46%
- Osteoporosis23%
- Ischemic heart disease21%
Practice locations
Addresses where Ambica C. Sastry is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 10th AveNew York, NY 10019 (212) 523‑4000
- 200 W 57th St, WNew York, NY 10019 (212) 603‑4160
Group practices
Medicare enrollment lists Ambica C. Sastry as a member of this group (CMS data updated October 2, 2026).
- Icahn School of Medicine at Mount Sinai2,843 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.
Other clinicians in Icahn School of Medicine at Mount Sinai
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417489568 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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