Registry data as of Aug 27, 2026

David Chen, MD

Internal Medicine Physician · Downey, CA

David Chen, MD is an internal medicine physician with a practice address in Downey, California, and NPI 1295315489, issued on Apr 12, 2021. Check the license (California A195013, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1295315489
Name
David Chen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A195013 CA
Self-reported in NPPES; status is on the state search
Practice location
10441 Lakewood Blvd Ste AB, Downey, CA 90241
Phone
(562) 869-1070
Enumerated
Apr 12, 2021
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.
Download card Updates feed

Also registered at 10441 Lakewood Blvd Ste AB

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

  1. Muhammad Anees, M.D.Internal Medicine Physician1730323353
  2. Anne Gail ApostolNurse Practitioner1801633805
  3. Sophie-Chizoma Asogu-Nwosu, NURSE PRACTITIONERNurse Practitioner1538718598
  4. Raj Balasundaram, M.D.Internal Medicine Physician1083840367
  5. Simon Chang, M.D.Family Medicine Physician1760594097
  6. Janine Cuevas, NPAcute Care Nurse Practitioner1477278489

Verify David 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 A195013
    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 →

90% fewer Medicare Part D claims than the average internal medicine physician in 2024

318 Medicare Part D claims for 102 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. David Chen318
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium28 claims
  2. Amlodipine Besylate21 claims
  3. Losartan Potassium19 claims
  4. Pantoprazole Sodium15 claims
  5. Gabapentin14 claims
  6. Albuterol Sulfate Hfa13 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 GroupDowney, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

114 internal medicine physician records list a practice address in Downey

They are 114 of the 3,607 NPPES records with a practice address in Downey, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is David Chen, MD's NPI number?

David Chen, MD's National Provider Identifier (NPI) is 1295315489, issued on Apr 12, 2021. An NPI identifies a provider in billing; it is not a license.

Where is David Chen, MD located?

The NPPES record lists a practice address at 10441 Lakewood Blvd Ste AB, Downey, CA, 90241. Phone: (562) 869-1070. Providers update this record themselves, so call before visiting.

How can I verify David Chen, MD's license?

NPPES lists California license number A195013, 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 David Chen, MD prescribe under Medicare Part D?

In 2024, David Chen, MD had 318 Medicare Part D claims for 102 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.