AMBER LUCILLE BREWSTER MD
NPI 1821653262
Family Medicine in La Mesa, CA
About Amber Lucille Brewster Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMBER LUCILLE BREWSTER MD (NPI 1821653262) is an individual family medicine provider in La Mesa, California, licensed in California (A190634) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Dunn, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Amber Lucille Brewster Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Amber Brewster reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92108
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 clinicians in this Medicare group
Bakersfield, CA 93312
- Reassigned Medicare billing, California enrollment
- 225 clinicians in this Medicare group
Raeford, NC 28376
- Reassigned Medicare billing, North Carolina enrollment
- 906 clinicians in this Medicare group
Sanford, NC 27332
- Reassigned Medicare billing, North Carolina enrollment
- 63 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91942 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA MESA, CA 91942
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Amber Brewster's NPI number?
The NPI number for Amber Brewster is 1821653262. It was assigned to this individual provider in the NPPES registry on May 1, 2019.
Where is Amber Brewster located?
Amber Brewster practices at 5525 Grossmont Center Dr, La Mesa, CA 91942. The listed phone number is (619) 740-6000.
What is Amber Brewster's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Amber Brewster enrolled in Medicare?
Yes. Amber Brewster is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Amber Brewster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amber Brewster reassigns Medicare benefits to 5 organizations: Southern California Permanente Medical Group (San Diego, CA), Sharp Rees-Stealy Medical Group, Inc (San Diego, CA), Emergency Physicians Urgent Care Inc. (Bakersfield, CA), Cumberland County Hospital System Inc (Raeford, NC) and Harnett Health System Inc (Sanford, NC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amber Brewster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amber Brewster accept?
Health plans from Cigna Healthcare list Amber Brewster as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Amber Brewster was last updated on March 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Amber Lucille Brewster, MD · NPI 1821653262
Family Medicine physician in La Mesa, California. Individual provider, active in the CMS NPPES registry since May 1, 2019.
## Identity
- **NPI:** 1821653262 (Entity type: Individual)
- **Enumerated:** May 1, 2019
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A190634 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5525 GROSSMONT CENTER DR, La Mesa, CA 91942-3009
- **Phone:** (619) 740-6000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1023425972, San Diego, CA); Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA); Emergency Physicians Urgent Care Inc. (NPI 1689963845, Bakersfield, CA); Cumberland County Hospital System Inc (NPI 1447255328, Raeford, NC); Harnett Health System Inc (NPI 1457957938, Sanford, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** March 14, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1821653262) · Data from the CMS NPPES public registry.