Registry data as of Aug 27, 2026

Matthew Brewer, D.O.

Emergency Medicine Physician · Emeryville, CA

Matthew Brewer, D.O. is an emergency medicine physician with a practice address in Emeryville, California, and NPI 1780846709, issued on Jun 30, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1780846709
Name
Matthew Brewer
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
2100 Powell St Ste 900, Emeryville, CA 94608
Phone
(510) 350-2600
Enumerated
Jun 30, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2100 Powell St Ste 900

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

  1. Rougeh Awad, FNPFamily Nurse Practitioner1831482991
  2. Leanne Beckstrom, PA-CPhysician Assistant1437636313
  3. Susan Bertelsen, P.A.-C.Physician Assistant1790809739
  4. Gadiel Escobedo, FNP-BCEmergency Medicine Physician1902362155
  5. Kathryn Hall-Boyer, MDEmergency Medicine Physician1144240201
  6. John Hardin, PACEmergency Medicine Physician1215032982

Verify Matthew Brewer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

39% fewer Medicare Part D claims than the average emergency medicine physician in 2024

218 Medicare Part D claims for 146 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Matthew Brewer218
  2. Specialty average355

Most prescribed

  1. Ibuprofen26 claims
  2. Cefpodoxime Proxetil19 claims
  3. Doxycycline Hyclate19 claims
  4. Tramadol Hcl18 claims
  5. Hydrocodone-Acetaminophen13 claims
  6. Ondansetron Odt12 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.

Industry payments in 2024: $19.70

1 payment, mostly food and beverage; the largest payer was Alexion Pharmaceuticals, Inc.. The 12,165 providers of this specialty with any payment received $1,340.71 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Brewer$19.70
  2. Specialty average$1,340.71

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. EM Alliance California ApcWildomar, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

30 emergency medicine physician records list a Emeryville practice address

They are 30 of the 703 NPPES records with a Emeryville practice address, and 7,133 emergency medicine physician records in California.

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Matthew Brewer, D.O.'s NPI number?

Matthew Brewer, D.O.'s National Provider Identifier (NPI) is 1780846709, issued on Jun 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Brewer, D.O. located?

The NPPES record lists a practice address at 2100 Powell St Ste 900, Emeryville, CA, 94608. Phone: (510) 350-2600. Providers update this record themselves, so call before visiting.

How can I verify Matthew Brewer, D.O.'s license?

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 Matthew Brewer, D.O. prescribe under Medicare Part D?

In 2024, Matthew Brewer, D.O. had 218 Medicare Part D claims for 146 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.