Quick answers
- Does Sierra J. Seaman accept Medicare assignment?
- Yes. Medicare's clinician data says Sierra J. Seaman 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.
- What is Sierra J. Seaman's NPI number?
- 1669835880. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sierra J. Seaman works
Medicare's Facility Affiliation Data lists Sierra J. Seaman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330101
Practice locations
Addresses where Sierra J. Seaman is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 Westchester AveWest Harrison, NY 10604 (914) 327‑2700
- 161 Fort Washington AveNew York, NY 10032 (212) 305‑8559
- 55 Palmer AveBronxville, NY 10708
Group practices
Medicare enrollment lists Sierra J. Seaman as a member of this group (CMS data updated October 2, 2026).
- Trustees of Columbia University in the City of New York2,296 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Trustees of Columbia University in the City of New York
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669835880 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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