NPPES file of Aug 9, 2026

Amber Lucille Brewster, MD

Family Medicine Physician · La Mesa, CA

Amber Lucille Brewster, MD is a family medicine physician with a practice address in La Mesa, California, and NPI 1821653262, issued on May 1, 2019. Check the license (California A190634, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821653262
Name
Amber Lucille Brewster
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
A190634 CA
202301998 NC
Self-reported in NPPES; status is on the state search
Practice location
5525 Grossmont Center Dr, La Mesa, CA 91942
Phone
(619) 740-6000
Enumerated
May 1, 2019
Record last updated
Mar 14, 2024
Medicare enrollment
Enrolled (PECOS I20240130002500); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 5525 Grossmont Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ashkan Abedini, MDFamily Medicine Physician1013546373
  2. Cynthia Adams, PA-CMedical Physician Assistant1447564141
  3. Alicia Afrah-Boateng, PA-CPhysician Assistant1174073886
  4. Sonal Agrawal, M.D.Pediatrics Physician1881702348
  5. Mary Alexander, M.D.Internal Medicine Physician1538177845
  6. James Amberg, MDFamily Medicine Physician1265497093

Verify Amber Lucille Brewster in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A190634
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

51% fewer Medicare Part D claims than the average family medicine physician in 2024

1,731 Medicare Part D claims for 375 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 44 claims were for opioids.

  1. Amber Brewster1,731
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium126 claims
  2. Lisinopril93 claims
  3. Levothyroxine Sodium80 claims
  4. Gabapentin60 claims
  5. Losartan Potassium53 claims
  6. Amlodipine Besylate49 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 3 group practices

  1. Emergency Physicians Urgent Care IncBakersfield, CA
  2. Sharp Rees-Stealy Medical Group IncLa Mesa, CA
  3. Southern California Permanente Medical GroupRiverside, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Amber Lucille Brewster among 17,133 family medicine physician records in California

Amber Lucille Brewster, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2015 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

67 family medicine physician records list a practice address in La Mesa

They are 67 of the 2,168 NPPES records with a practice address in La Mesa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joseph Aiello, D.O.La Mesa, CA 919421104844380
  2. James Amberg, MDLa Mesa, CA 919421265497093
  3. Adrianna Dangremond, MDLa Mesa, CA 919421508802828
  4. Frederick Jenkin, PHYSICIANLa Mesa, CA 919421225069123
  5. Bradham Kesling, M.D.La Mesa, CA 919421841224805
  6. Maria Lai, M.D.La Mesa, CA 919421588645048
  7. Robert Lajvardi, MDLa Mesa, CA 919421235187568
  8. Paula Leibham, NPLa Mesa, CA 919421114944899

Common questions

What is Amber Lucille Brewster, MD's NPI number?

Amber Lucille Brewster, MD's National Provider Identifier (NPI) is 1821653262, issued on May 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Amber Lucille Brewster, MD located?

The NPPES record lists a practice address at 5525 Grossmont Center Dr, La Mesa, CA, 91942. Phone: (619) 740-6000. Providers update this record themselves, so call before visiting.

How can I verify Amber Lucille Brewster, MD's license?

NPPES lists California license number A190634, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Amber Lucille Brewster, MD prescribe under Medicare Part D?

In 2024, Amber Lucille Brewster, MD had 1,731 Medicare Part D claims for 375 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.