NPPES file of Aug 9, 2026

John Lee Chen

Student in an Organized Health Care Education/Training Program · Oakland, CA

John Lee Chen is a student in an organized health care education/training program with a practice address in Oakland, California, and NPI 1669029534, issued on Aug 24, 2019. Check the license with the California board that licenses this profession; 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
1669029534
Name
John Lee Chen
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
275 W Macarthur Blvd, Oakland, CA 94611
Phone
(510) 752-1000
Enumerated
Aug 24, 2019
Record last updated
Mar 22, 2023
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.
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Also registered at 275 W Macarthur Blvd

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

  1. David Aaronson, MDUrology Physician1215053129
  2. Paul-Andre Abboud, M.D.Emergency Medicine Physician1710065503
  3. Brittany Abeldt, MDPsychiatry Physician1982353884
  4. Bilal Abu-Alrub, DOStudent in an Organized Health Care Education/Training Program1609760768
  5. Walter Acuna, MDInternal Medicine Physician1972655108
  6. Brett Adams, MDStudent in an Organized Health Care Education/Training Program1841731098

Verify John Lee Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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37% more Medicare Part D claims than the average student in an organized health care education/training program in 2024

254 Medicare Part D claims for 42 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. John Chen254
  2. Specialty average185

Most prescribed

  1. Atorvastatin Calcium23 claims
  2. Pantoprazole Sodium13 claims
  3. Lisinopril12 claims
  4. Amlodipine Besylate11 claims
  5. Jardiance11 claims
  6. Tamsulosin Hcl11 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 Lee Chen among 40,652 student in an organized health care education/training program records in California

John Lee Chen is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 20% of them.

  • NPI issued2019 · 20% of these records are older, 76% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2023 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,419 student in an organized health care education/training program records list a practice address in Oakland

They are 1,419 of the 18,558 NPPES records with a practice address in Oakland, and 40,652 student in an organized health care education/training program records in California.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Leah Bowser, MDOakland, CA 946111518132794
  2. Sonia Cheung, MDOakland, CA 946111356518203
  3. Albert Chong, MDOakland, CA 946111275514416
  4. Catherine Cox, MDOakland, CA 946111558522532
  5. Jeong Han, MDOakland, CA 946111578766051
  6. Jane Hu, MDOakland, CA 946111891967790
  7. Jafer Jeelani, M.D.Oakland, CA 946111669659744
  8. Yana Kriseman, MDOakland, CA 946111467607648

Common questions

What is John Lee Chen's NPI number?

John Lee Chen's National Provider Identifier (NPI) is 1669029534, issued on Aug 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is John Lee Chen located?

The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.

How can I verify John Lee Chen's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Lee Chen prescribe under Medicare Part D?

In 2024, John Lee Chen had 254 Medicare Part D claims for 42 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.