Quick answers
- Where does Sandra Di Stefano see patients?
- Medicare's clinician data lists 2 practice locations, including Lancaster, CA and Whittier, CA. Call before your visit to confirm the address.
- What is Sandra Di Stefano's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Sandra Di Stefano accept Medicare assignment?
- Yes. Medicare's clinician data says Sandra Di Stefano 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 Sandra Di Stefano's NPI number?
- 1851555213. 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 Sandra Di Stefano is enrolled with Medicare (CMS data updated 2026-10-02).
- 335 E Ave ILancaster, CA 93535
- 6221 Palm AveWhittier, CA 90601
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Clinician information
| Graduation year | 2007 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851555213 |
| 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