Quick answers
- Where does Mariam M. Sorial see patients?
- Medicare's clinician data lists 1 practice location in Rialto, CA. Call before your visit to confirm the address.
- What is Mariam M. Sorial's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mariam M. Sorial accept Medicare assignment?
- Yes. Medicare's clinician data says Mariam M. Sorial 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 the phone number for Mariam M. Sorial?
- (909) 421-2700, as listed in official Medicare / NPI Registry data.
- What is Mariam M. Sorial's NPI number?
- 1972288496. 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 Mariam M. Sorial is enrolled with Medicare (CMS data updated 2026-10-02).
- 1851 N Riverside AveRialto, CA 92376 (909) 421‑2700
Group practices
Medicare enrollment lists Mariam M. Sorial as a member of this group (CMS data updated 2026-10-02).
- Pinnacle Medical Group Inc19 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rialto
Clinicians with the same Medicare primary specialty in Rialto, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972288496 |
| 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 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