NPPES file of Aug 9, 2026

Li Chen, N.P.

Adult Health Nurse Practitioner · Walnut Creek, CA

Li Chen, N.P. is an adult health nurse practitioner with a practice address in Walnut Creek, California, and NPI 1336232560, issued on Oct 2, 2006. Check the license (California NP19903, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336232560
Name
Li Chen
Credential
N.P.
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
NP19903 CA
Self-reported in NPPES; status is on the state search
Practice location
1479 Ygnacio Valley RD, Walnut Creek, CA 94598
Phone
(925) 941-4058
Enumerated
Oct 2, 2006
Record last updated
Apr 19, 2019 (not updated in 7 years: call before relying on the address or phone)
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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8 nearest adult health nurse practitioner records → All 1,405 in California → Look up another NPI →

Also registered at 1479 Ygnacio Valley RD

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

  1. Baldomero De Leon, M.D.Internal Medicine Physician1891819090
  2. Megan Hardin, MPA, PA-CPhysician Assistant1831411453
  3. Julia Lee, DDSGeneral Practice Dentistry1568664472
  4. Katherine Westbrook, N.P.Nurse Practitioner1215950159

Verify Li 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 NP19903    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.

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Li Chen among 1,405 adult health nurse practitioner records in California

Li Chen, N.P. is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 82% newer
  • In a Medicare fileNo · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2019 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in California

There are 1,405 adult health nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,405 in California → Every provider in Walnut Creek → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Gwendolyn Cashman, N.P.Walnut Creek, CA 945981720057037
  2. Laura Davis, N.P.Walnut Creek, CA 945981982936068
  3. Tricia McNeal, AGNPWalnut Creek, CA 945981902299506
  4. Kimberly Oja, NPWalnut Creek, CA 945981396245064
  5. Vivian Park, N.P.Walnut Creek, CA 945981932533452
  6. Katherine Sieu, RN, NPWalnut Creek, CA 945981356591085
  7. Terilyn Voegtle, APRN, BCWalnut Creek, CA 945981063670743
  8. Zachary Johnston, NPWalnut Creek, CA 945971730075623

Common questions

What is Li Chen, N.P.'s NPI number?

Li Chen, N.P.'s National Provider Identifier (NPI) is 1336232560, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Li Chen, N.P. located?

The NPPES record lists a practice address at 1479 Ygnacio Valley RD, Walnut Creek, CA, 94598. Phone: (925) 941-4058. Providers update this record themselves, so call before visiting.

How can I verify Li Chen, N.P.'s license?

NPPES lists California license number NP19903, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.