NPPES file of Aug 9, 2026

Kristen Walsh, PA-C

Physician Assistant · San Mateo, CA

Kristen Walsh, PA-C is a physician assistant with a practice address in San Mateo, California, and NPI 1417706714, issued on May 17, 2024. Check the license (California PA64517, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417706714
Name
Kristen Walsh
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA64517 CA
Self-reported in NPPES; status is on the state search
Practice location
46 Hillsdale Mall, San Mateo, CA 94403
Phone
(650) 292-0847
Enumerated
May 17, 2024
Record last updated
Apr 22, 2025
Medicare enrollment
Enrolled (PECOS I20241017002561); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 46 Hillsdale Mall

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

  1. Stephanie Yeh, PA-CPhysician Assistant1467926477

Verify Kristen Walsh 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 PA64517
    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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Bills Medicare through one group practice

  1. Carbon Health Primary Care OF California PCCampbell, CA

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

Kristen Walsh among 14,451 physician assistant records in California

Kristen Walsh, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2024 · median 2018 among the 7,214 with a school on file
  • Record last updated2025 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physician Assistant providers in California

There are 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Karen Ben-Nun, PA-CSan Mateo, CA 944031487833679
  2. Ariane Bosch, PA-CSan Mateo, CA 944031649753427
  3. Jessica Chu, PASan Mateo, CA 944031306257167
  4. Erin DanielSan Mateo, CA 944031578034633
  5. Joann Deasy, P.A-CSan Mateo, CA 944031821105776
  6. Kevin Eitel, PA-CSan Mateo, CA 944031811583263
  7. Maria De La Paz Guzman, P.A-CSan Mateo, CA 944031235246083
  8. Catherine HickeySan Mateo, CA 944031598232134

Common questions

What is Kristen Walsh, PA-C's NPI number?

Kristen Walsh, PA-C's National Provider Identifier (NPI) is 1417706714, issued on May 17, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Kristen Walsh, PA-C located?

The NPPES record lists a practice address at 46 Hillsdale Mall, San Mateo, CA, 94403. Phone: (650) 292-0847. Providers update this record themselves, so call before visiting.

How can I verify Kristen Walsh, PA-C's license?

NPPES lists California license number PA64517, 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. 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.