Quick answers
- Does Annette S. Greenstein accept Medicare assignment?
- Yes. Medicare's clinician data says Annette S. Greenstein 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 Annette S. Greenstein's NPI number?
- 1982761821. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Annette S. Greenstein works
Medicare's Facility Affiliation Data lists Annette S. Greenstein 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.
- Ascension Providence Hospital, Southfield and NoviSouthfield, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230019
Practice locations
Addresses where Annette S. Greenstein is enrolled with Medicare (CMS data updated October 2, 2026).
- 32905 W 12 Mile RdFarmington Hills, MI 48334 (248) 488‑5500
- 32905 W 12 Mile Rd, Suite 440Farmington Hills, MI 48334
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Farmington Hills
Clinicians with the same Medicare primary specialty in Farmington Hills, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982761821 |
| 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