NPPES file of Aug 9, 2026

Eric Joseph Mathews, MD

Psychiatry Physician · Los Angeles, CA

Eric Joseph Mathews, MD is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1952976748, issued on May 24, 2021. Check the license (California A198676, 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
1952976748
Name
Eric Joseph Mathews
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A198676 CA
Self-reported in NPPES; status is on the state search
Practice location
355 S Grand Ave, Los Angeles, CA 90071
Phone
(213) 415-3415
Enumerated
May 24, 2021
Record last updated
Jun 30, 2025
Fax
(213) 444-7516
Medicare enrollment
Enrolled (PECOS I20250911001143); 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.
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Also registered at 355 S Grand Ave

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

  1. Adriana Fernandez, SOCIAL WORK INTERNSchool Social Worker1134601784

Verify Eric Joseph Mathews in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A198676
    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.

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82% fewer Medicare Part D claims than the average psychiatry physician in 2024

183 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Eric Mathews183
  2. Specialty average1,000

Most prescribed

  1. Olanzapine34 claims
  2. Clonazepam18 claims
  3. Duloxetine Hcl17 claims
  4. Escitalopram Oxalate13 claims
  5. Trazodone Hcl12 claims
  6. Alprazolam11 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 one group practice

  1. Ehab Yacoub MD IncGardena, CA

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

Eric Joseph Mathews among 8,673 psychiatry physician records in California

Eric Joseph Mathews, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2021 · median 2005 among the 3,295 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

987 psychiatry physician records list a practice address in Los Angeles

They are 987 of the 69,537 NPPES records with a practice address in Los Angeles, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Mace Beckson, M.D.Los Angeles, CA 900731558455287
  2. C Edward Castelo, M.D.West Hollywood, CA 900691497280978
  3. Joshua Cohen, MDWest Hollywood, CA 900691366903106
  4. Pamela Diefenbach, M.D.Los Angeles, CA 900731437100609
  5. Roger Donovick, MDLos Angeles, CA 900731710902622
  6. Donald Eknoyan, M.D.Los Angeles, CA 900731528027174
  7. Denise Feil, MDLos Angeles, CA 900731265484943
  8. Neil Hartman, MD, PHDLos Angeles, CA 900731831287804

Common questions

What is Eric Joseph Mathews, MD's NPI number?

Eric Joseph Mathews, MD's National Provider Identifier (NPI) is 1952976748, issued on May 24, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Eric Joseph Mathews, MD located?

The NPPES record lists a practice address at 355 S Grand Ave, Los Angeles, CA, 90071. Phone: (213) 415-3415. Providers update this record themselves, so call before visiting.

How can I verify Eric Joseph Mathews, MD's license?

NPPES lists California license number A198676, 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 Eric Joseph Mathews, MD prescribe under Medicare Part D?

In 2024, Eric Joseph Mathews, MD had 183 Medicare Part D claims for 11 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.