Quick answers
- Which hospitals does Amber Brewster work at?
- Medicare's official clinician data lists Amber Brewster at 1 hospital: Grossmont Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Amber Brewster see patients?
- Medicare's clinician data lists 4 practice locations, including Riverside, CA, Bakersfield, CA and La Mesa, CA. Call before your visit to confirm the address.
- What is Amber Brewster's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Amber Brewster accept Medicare assignment?
- Yes. Medicare's clinician data says Amber Brewster 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.
- Does Amber Brewster offer telehealth?
- Medicare's clinician data says Amber Brewster offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Amber Brewster?
- (951) 353-2000, as listed in official Medicare / NPI Registry data.
- What is Amber Brewster's NPI number?
- 1821653262. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Amber Brewster works
Medicare's Facility Affiliation Data lists Amber Brewster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · CCN 050026
Practice locations
Addresses where Amber Brewster is enrolled with Medicare (CMS data updated 2026-10-02).
- 10800 Magnolia AveRiverside, CA 92505 (951) 353‑2000
- 212 Coffee Rd, Suite 100Bakersfield, CA 93309 (661) 885‑6060
- 5525 Grossmont Ctr DrLa Mesa, CA 91942 (858) 499‑2600
- 9710 Brimhall RdBakersfield, CA 93312 (661) 829‑6747
Group practices
Medicare enrollment lists Amber Brewster as a member of these groups (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
- Sharp Rees-Stealy Medical Group Inc884 clinicians in the group
- Emergency Physicians Urgent Care Inc140 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Riverside
Clinicians with the same Medicare primary specialty in Riverside, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821653262 |
| 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