John Matthew Chase, M.D.
Pediatrics Physician · Los Angeles, CA
John Matthew Chase, M.D. is a pediatrics physician with a practice address in Los Angeles, California, and NPI 1194084012, issued on May 12, 2012. Check the license (California A115299, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Matthew Chase
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A115299 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4867 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (877) 574-0002
- Enumerated
- May 12, 2012
- Record last updated
- Nov 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 4867 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Abbas, MDPediatrics Physician1982163796
- Marina AbrahamPharmacist1043858715
- Jaime Aguayo, RCPCertified Respiratory Therapist1689142101
- Raul AguilarRegistered Respiratory Therapist1407331432
- Youngmi-Grace AhnPharmacist1235210477
- Tulsi Akikwala, M.D.Anesthesiology Physician1578718425
Verify John Matthew Chase in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115299Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average pediatrics physician in 2024
771 Medicare Part D claims for 216 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Azelastine Hcl235 claims
- Ipratropium Bromide90 claims
- Montelukast Sodium71 claims
- Fluticasone Propionate65 claims
- Breyna43 claims
- Spiriva Respimat42 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.
John Matthew Chase among 9,272 pediatrics physician records in California
John Matthew Chase, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 27% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2021 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
919 pediatrics physician records list a practice address in Los Angeles
They are 919 of the 69,537 NPPES records with a practice address in Los Angeles, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Los Angeles → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Lamis Al-Ahmad, M.D.Los Angeles, CA 900271356445522
- Eyal Ben-Isaac, MDLos Angeles, CA 900271689779597
- Clement Cheung, M.D., PH.D.Los Angeles, CA 900271437165826
- Edward Epstein, M.D.Los Angeles, CA 900271568420768
- Joyce Javier, MDLos Angeles, CA 900271033172754
- Richard Ko, M.D.Los Angeles, CA 900271003841693
- Jill Lekovic, M.D.Los Angeles, CA 900271265543185
- Kanokporn Mongkolrattanothai, MDLos Angeles, CA 900271174592950
Common questions
What is John Matthew Chase, M.D.'s NPI number?
John Matthew Chase, M.D.'s National Provider Identifier (NPI) is 1194084012, issued on May 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Matthew Chase, M.D. located?
The NPPES record lists a practice address at 4867 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (877) 574-0002. Providers update this record themselves, so call before visiting.
How can I verify John Matthew Chase, M.D.'s license?
NPPES lists California license number A115299, 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 John Matthew Chase, M.D. prescribe under Medicare Part D?
In 2024, John Matthew Chase, M.D. had 771 Medicare Part D claims for 216 beneficiaries; the average among pediatrics physician prescribers was 375. 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.