Quick answers
- Does Rachel A. Greenbaum accept Medicare assignment?
- Yes. Medicare's clinician data says Rachel A. Greenbaum 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 Rachel A. Greenbaum's NPI number?
- 1528837457. 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 Rachel A. Greenbaum is enrolled with Medicare (CMS data updated October 2, 2026).
- 175 Remsen St, Suite 2Brooklyn, NY 11201 (718) 342‑6700
- 19 Union Sq W, Fl 7New York, NY 10003 (212) 627‑9600
Group practices
Medicare enrollment lists Rachel A. Greenbaum as a member of this group (CMS data updated October 2, 2026).
- Realization Center Inc11 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Other clinicians in Realization Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | Touro Un Col Of Osteopathic Medicine, New York |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528837457 |
| 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
- 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