Registry data as of Aug 27, 2026

John Arsenault, MD

Pediatrics Physician · Los Angeles, CA

John Arsenault, MD is a pediatrics physician with a practice address in Los Angeles, California, and NPI 1124647334, issued on Apr 9, 2020. Check the license (California A185377, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1124647334
Name
John Arsenault
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
A185377 CA
Self-reported in NPPES; status is on the state search
Practice location
4650 Sunset Blvd, Los Angeles, CA 90027
Phone
(323) 660-2450
Enumerated
Apr 9, 2020
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 4650 Sunset Blvd

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

  1. Grace Aldrovandi, MDPediatric Infectious Diseases Physician1225122906
  2. Jeffrey Birnbaum, MDPediatric Emergency Medicine (Pediatrics) Physician1679992242
  3. Allyssa BrodyChild & Adolescent Psychiatry Physician1598171589
  4. Laura Campbell, MDChild & Adolescent Psychiatry Physician1326539297
  5. Mary Capili, MSPsychologist1770385833
  6. Sarah CarpenterPediatrics Physician1477057479

Verify John Arsenault in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A185377
    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.

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

One hospital or facility affiliation

  1. Childrens Hospital Los Angeles Medical Group IncLos Angeles, 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.

919 pediatrics physician records list a Los Angeles practice address

They are 919 of the 69,537 NPPES records with a Los Angeles practice address, and 9,272 pediatrics physician records in California.

Other pediatrics physician records in California

  1. Subha Aahlad, M.D.Foster City, CA1780610253
  2. Rebecca Aaronson, MDPanorama City, CA1487746814
  3. Gregorio Abad-Santos, M.D.Long Beach, CA1255451894
  4. Michelle Abajian, MDLa Canada, CA1619176757
  5. Joseph Abapo, MDRiverside, CA1841348786
  6. Zvart Abaryan, MDLos Angeles, CA1154940849
  7. Lauren Abbas, MDLos Angeles, CA1982163796
  8. Attia Abbasi, M.D.Auburn, CA1922027127
  9. Denise AbbasiParadise, CA1770062341
  10. Alexandra Abbott, MDPalo Alto, CA1760018675

Common questions

What is John Arsenault, MD's NPI number?

John Arsenault, MD's National Provider Identifier (NPI) is 1124647334, issued on Apr 9, 2020. An NPI identifies a provider in billing; it is not a license.

Where is John Arsenault, MD located?

The NPPES record lists a practice address at 4650 Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 660-2450. Providers update this record themselves, so call before visiting.

How can I verify John Arsenault, MD's license?

NPPES lists California license number A185377, 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.

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.

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) 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 27, 2026.