John H. Chen, M.D.
Diagnostic Radiology Physician · Los Angeles, CA
John H. Chen, M.D. is a diagnostic radiology physician with a practice address in Los Angeles, California, and NPI 1174639942, issued on Aug 22, 2006. Check the license (California A42452, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John H. Chen
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A42452 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1300 N Vermont Ave, Los Angeles, CA 90027
- Phone
- (323) 913-4260
- Enumerated
- Aug 22, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (323) 913-4922
- Medicaid ID
- 00A424520 CA
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 1300 N Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yeong Ahn, M.D.Specialist1073504031
- Oscar Alvarez, IBCLCLactation Consultant (Non-RN)1396185617
- Silverio Arano, MDFamily Medicine Physician1447229851
Verify John H. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024
40 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D. Brand-name drugs were 65% of claims.
Most prescribed
- Myrbetriq26 claims
- Trospium Chloride12 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 H. Chen among 4,500 diagnostic radiology physician records in California
John H. Chen, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Los Angeles → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Melissa Debayle, M.D.Los Angeles, CA 900271679747232
- Paul Didomenico, M.D.Los Angeles, CA 900271679782387
- Caroline Fong, M.D.Los Angeles, CA 900271417175233
- Jennifer Hsu, MDLos Angeles, CA 900271700964392
- Patrick Inscore, M.D.Los Angeles, CA 900271720208234
- Harshawn Malhi, M.D.Los Angeles, CA 900271881675510
- Gregory Mitton, MDLos Angeles, CA 900271255302139
- Bahar Moussavian, MDLos Angeles, CA 900271821134784
Common questions
What is John H. Chen, M.D.'s NPI number?
John H. Chen, M.D.'s National Provider Identifier (NPI) is 1174639942, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John H. Chen, M.D. located?
The NPPES record lists a practice address at 1300 N Vermont Ave, Los Angeles, CA, 90027. Phone: (323) 913-4260. Providers update this record themselves, so call before visiting.
How can I verify John H. Chen, M.D.'s license?
NPPES lists California license number A42452, 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 H. Chen, M.D. prescribe under Medicare Part D?
In 2024, John H. Chen, M.D. had 40 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.