NPPES file of Aug 9, 2026

Jenny Yu Chen

Ambulatory Care Pharmacist · San Rafael, CA

Jenny Yu Chen is an ambulatory care pharmacist with a practice address in San Rafael, California, and NPI 1003652173, issued on Jul 8, 2024. Check the license (California 88402, as entered in NPPES) 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
1003652173
Name
Jenny Yu Chen
Primary taxonomy
Ambulatory Care Pharmacist 1835P2201X
License number
88402 CA
Self-reported in NPPES; status is on the state search
Practice location
100 Smith Ranch RD Ste 200, San Rafael, CA 94903
Phone
(626) 377-8822
Enumerated
Jul 8, 2024
Record last updated
Jul 8, 2024
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

Verify Jenny Yu Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 88402
    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
Find 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

95% fewer Medicare Part D claims than the average ambulatory care pharmacist in 2024

25 Medicare Part D claims for 25 beneficiaries, against an average of 527 among the 449 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Jenny Chen25
  2. Specialty average527

Most prescribed

  1. Paxlovid25 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.

Jenny Yu Chen among 485 ambulatory care pharmacist records in California

Jenny Yu Chen is one of 485 ambulatory care pharmacist records with a practice address in California. 39% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 87% of them.

  • NPI issued2024 · 87% of these records are older, 7% newer
  • In a Medicare fileYes · 39% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P2201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ambulatory Care Pharmacist providers in California

There are 485 ambulatory care pharmacist records in California.

The 8 ambulatory care pharmacist records with the nearest ZIP codes

  1. Omar Ahmed, PHARMDSan Rafael, CA 949031285254037
  2. Yeonbi Aylward, PHARMDSan Rafael, CA 949031669822771
  3. Ali AzarpiraSan Rafael, CA 949031568828390
  4. Michelle Castillones, PHARMDSan Rafael, CA 949031922457191
  5. Shirley Feng, PHARMDSan Rafael, CA 949031518488097
  6. Sirena LauSan Rafael, CA 949031386165868
  7. Andrew Lothrop, PHARMDSan Rafael, CA 949031851744320
  8. Ronda Lowe, RPHMill Valley, CA 949411972880128

Common questions

What is Jenny Yu Chen's NPI number?

Jenny Yu Chen's National Provider Identifier (NPI) is 1003652173, issued on Jul 8, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Jenny Yu Chen located?

The NPPES record lists a practice address at 100 Smith Ranch RD Ste 200, San Rafael, CA, 94903. Phone: (626) 377-8822. Providers update this record themselves, so call before visiting.

How can I verify Jenny Yu Chen's license?

NPPES lists California license number 88402, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jenny Yu Chen prescribe under Medicare Part D?

In 2024, Jenny Yu Chen had 25 Medicare Part D claims for 25 beneficiaries; the average among ambulatory care pharmacist prescribers was 527. 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.