NPPES file of Aug 9, 2026

David Chen, M.D.

Cardiovascular Disease Physician · Fontana, CA

David Chen, M.D. is a cardiovascular disease physician with a practice address in Fontana, California, and NPI 1982634788, issued on Jul 4, 2006. Check the license (California A85013, 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
1982634788
Name
David Chen
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
A85013 CA
Self-reported in NPPES; status is on the state search
Practice location
9985 Sierra Ave, Fontana, CA 92335
Phone
(866) 454-3485
Enumerated
Jul 4, 2006
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050805000572); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2002
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 9985 Sierra Ave

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

  1. Olga Acosta, MDPediatrics Physician1861404832
  2. Najjia Ahmed, M.D.Pediatrics Physician1699110395
  3. Anje'Le AlstonSports Medicine (Internal Medicine) Physician1356970842
  4. Peyman Andalib, MDStudent in an Organized Health Care Education/Training Program1104028000
  5. Gerald ArafolOccupational Therapist1134315666
  6. Lovie Jay Arguelles, PTPhysical Therapist1457472920

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 A85013
    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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28% more Medicare Part D claims than the average cardiovascular disease physician in 2024

3,937 Medicare Part D claims for 805 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. David Chen3,937
  2. Specialty average3,078

Most prescribed

  1. Pradaxa382 claims
  2. Furosemide285 claims
  3. Bisoprolol Fumarate275 claims
  4. Isosorbide Mononitrate Er264 claims
  5. Metoprolol Tartrate261 claims
  6. Atorvastatin Calcium214 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.

Industry payments in 2024: $41.72

2 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. David Chen$41.72
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupOntario, CA

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

David Chen among 2,574 cardiovascular disease physician records in California

David Chen, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2002 · median 1999 among the 1,742 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Jasvir Ajit-Uppal, MDFontana, CA 923351811056575
  2. Jay Ball, MDFontana, CA 923351831260801
  3. William Chin, DOFontana, CA 923351508914490
  4. Eric Chou, MDFontana, CA 923351992876965
  5. Nainesh Gandhi, MDFontana, CA 923351003025743
  6. Eugene Hwang, MDFontana, CA 923351922156801
  7. Jennifer Knowles, MDFontana, CA 923351699846592
  8. Ravi Konchigeri, M.D.Fontana, CA 923351194767459

Common questions

What is David Chen, M.D.'s NPI number?

David Chen, M.D.'s National Provider Identifier (NPI) is 1982634788, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David Chen, M.D. located?

The NPPES record lists a practice address at 9985 Sierra Ave, Fontana, CA, 92335. Phone: (866) 454-3485. Providers update this record themselves, so call before visiting.

How can I verify David Chen, M.D.'s license?

NPPES lists California license number A85013, 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, M.D. prescribe under Medicare Part D?

In 2024, David Chen, M.D. had 3,937 Medicare Part D claims for 805 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.