NPPES file of Aug 9, 2026

Yifan Zhang

Family Nurse Practitioner · Castro Valley, CA

Yifan Zhang is a family nurse practitioner with a practice address in Castro Valley, California, and NPI 1841953874, issued on Oct 17, 2021. Check the license (California 95020586, 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
1841953874
Name
Yifan Zhang
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95020586 CA
Self-reported in NPPES; status is on the state search
Practice location
19400 Santa Maria Ave RM P7P8, Castro Valley, CA 94546
Phone
(510) 471-5880
Enumerated
Oct 17, 2021
Record last updated
Apr 20, 2026
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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Verify Yifan Zhang 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 95020586
    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

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90% fewer Medicare Part D claims than the average family nurse practitioner in 2024

131 Medicare Part D claims for 34 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Yifan Zhang131
  2. Specialty average1,305

Most prescribed

  1. Metformin Hcl17 claims
  2. Losartan Potassium12 claims
  3. Hydrochlorothiazide11 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.

Yifan Zhang among 16,966 family nurse practitioner records in California

Yifan Zhang is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 62% of them.

  • NPI issued2021 · 62% of these records are older, 32% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 family nurse practitioner records list a practice address in Castro Valley

They are 12 of the 999 NPPES records with a practice address in Castro Valley, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Tamara Brar, FNPCastro Valley, CA 945461932608494
  2. Abigail Clinkscales, APRN, FNP-CCastro Valley, CA 945461528578846
  3. Fern Cudlip, FNP, MSNCastro Valley, CA 945461922240183
  4. Ristina IngramCastro Valley, CA 945461720544596
  5. Susan Karplus, N.P.Castro Valley, CA 945461184878654
  6. Olivia Rusu, FNPCastro Valley, CA 945461043469695
  7. Parminder SidhuCastro Valley, CA 945461225786049
  8. Manwinder Sidhu, FNPCastro Valley, CA 945461821984725

Common questions

What is Yifan Zhang's NPI number?

Yifan Zhang's National Provider Identifier (NPI) is 1841953874, issued on Oct 17, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Yifan Zhang located?

The NPPES record lists a practice address at 19400 Santa Maria Ave RM P7P8, Castro Valley, CA, 94546. Phone: (510) 471-5880. Providers update this record themselves, so call before visiting.

How can I verify Yifan Zhang's license?

NPPES lists California license number 95020586, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Yifan Zhang prescribe under Medicare Part D?

In 2024, Yifan Zhang had 131 Medicare Part D claims for 34 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.