Quick answers
- Where does Asha S. Fields Brewer see patients?
- Medicare's clinician data lists 2 practice locations, including San Francisco, CA and Pleasanton, CA. Call before your visit to confirm the address.
- What is Asha S. Fields Brewer's specialty?
- Medicare lists Chiropractic as the primary specialty.
- Does Asha S. Fields Brewer accept Medicare assignment?
- Yes. Medicare's clinician data says Asha S. Fields Brewer 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 Asha S. Fields Brewer's NPI number?
- 1659657542. 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 Asha S. Fields Brewer is enrolled with Medicare (CMS data updated 2026-10-02).
- 2390 Powell St, Unit 4504San Francisco, CA 94133
- 5925 W Las Positas Blvd, Suite 100Pleasanton, CA 94588
Specialties
- Chiropracticprimary
Other chiropractors in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | DC |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659657542 |
| 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