Quick answers
- Which hospitals does Margaret R. Stein work at?
- Medicare's official clinician data lists Margaret R. Stein at 1 hospital: Providence Holy Cross Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Margaret R. Stein see patients?
- Medicare's clinician data lists 1 practice location in San Fernando, CA. Call before your visit to confirm the address.
- What is Margaret R. Stein's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Margaret R. Stein accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret R. Stein 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 Margaret R. Stein's NPI number?
- 1841942901. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Margaret R. Stein works
Medicare's Facility Affiliation Data lists Margaret R. Stein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Holy Cross Medical CenterMission Hills, CA · Acute Care Hospital · CCN 050278
Practice locations
Addresses where Margaret R. Stein is enrolled with Medicare (CMS data updated 2026-10-02).
- 732 Mott StSan Fernando, CA 91340
Group practices
Medicare enrollment lists Margaret R. Stein as a member of this group (CMS data updated 2026-10-02).
- San Fernando Community Hospital12 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Fernando
Clinicians with the same Medicare primary specialty in San Fernando, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841942901 |
| 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