NPPES file of Aug 9, 2026

Yan Jun Chen, MD

Family Medicine Physician · Temple City, CA

Yan Jun Chen, MD is a family medicine physician with a practice address in Temple City, California, and NPI 1023064250, issued on May 26, 2006. Check the license (California A92133, 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
1023064250
Name
Yan Jun Chen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A92133 CA
Self-reported in NPPES; status is on the state search
Practice location
9810 Las Tunas Dr, Temple City, CA 91780
Phone
(626) 309-7600
Enumerated
May 26, 2006
Record last updated
Dec 8, 2025
Medicare enrollment
Enrolled (PECOS I20051028000955); 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 9810 Las Tunas Dr

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

  1. Sarah Eghbali, P.A.Physician Assistant1538598156
  2. Stephanie Huang, MDFamily Medicine Physician1932765450
  3. Joseph Valentine, M.D.Internal Medicine Physician1124084249
  4. Wai Wai, M.D.Internal Medicine Physician1871789206
  5. Howard Young, MDInternal Medicine Physician1386751899

Verify Yan Jun Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A92133
    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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2.1 times the Medicare Part D claims of the average family medicine physician in 2024

7,590 Medicare Part D claims for 605 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 184 claims were for opioids.

  1. Yan Chen7,590
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium762 claims
  2. Losartan Potassium287 claims
  3. Amlodipine Besylate257 claims
  4. Metformin Hcl247 claims
  5. Rosuvastatin Calcium176 claims
  6. Levothyroxine Sodium174 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. Healthcare Partners Affiliates Medical GroupCarson, CA

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

Yan Jun Chen among 17,133 family medicine physician records in California

Yan Jun Chen, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2002 · median 2005 among the 10,652 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 family medicine physician records list a practice address in Temple City

They are 7 of the 266 NPPES records with a practice address in Temple City, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Marta Blesa, M.D.Temple City, CA 917801881614378
  2. Stella Chen, D.O.Temple City, CA 917801770818890
  3. Rosina Chen, D.O.Temple City, CA 917801689909707
  4. Peter Chi, M.D.Temple City, CA 917801023090867
  5. Stephanie Huang, MDTemple City, CA 917801932765450
  6. Kevin Lee, MDTemple City, CA 917801063536431
  7. Judith Cagan, M.D.San Gabriel, CA 917761194808923
  8. Luke Chan, M.D.San Gabriel, CA 917761558374116

Common questions

What is Yan Jun Chen, MD's NPI number?

Yan Jun Chen, MD's National Provider Identifier (NPI) is 1023064250, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Yan Jun Chen, MD located?

The NPPES record lists a practice address at 9810 Las Tunas Dr, Temple City, CA, 91780. Phone: (626) 309-7600. Providers update this record themselves, so call before visiting.

How can I verify Yan Jun Chen, MD's license?

NPPES lists California license number A92133, 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 Yan Jun Chen, MD prescribe under Medicare Part D?

In 2024, Yan Jun Chen, MD had 7,590 Medicare Part D claims for 605 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.