NPPES file of Aug 9, 2026

Christopher James Walker, NP

Nurse Practitioner · Palo Alto, CA

Christopher James Walker, NP is a nurse practitioner with a practice address in Palo Alto, California, and NPI 1790670701, issued on Jun 10, 2025. Check the license (California 95010375, 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
1790670701
Name
Christopher James Walker
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
95010375 CA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Jun 10, 2025
Record last updated
Jan 5, 2026
Medicare enrollment
Enrolled (PECOS I20251216003693); may accept Medicare assignment
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.
Download card Updates feed

8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →

Also registered at 725 Welch RD

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

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Christopher James Walker 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 95010375    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.

Christopher James Walker among 8,223 nurse practitioner records in California

Christopher James Walker, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% 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 2025, is newer than 93% of them.

  • NPI issued2025 · 93% of these records are older, 3% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2018 · median 2017 among the 3,425 with a school on file
  • Record last updated2026 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

318 nurse practitioner records list a practice address in Palo Alto

They are 318 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,223 nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,223 in California → Every provider in Palo Alto → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Claire Abrajano, P.N.P.Palo Alto, CA 943041427147040
  2. Christina Almgren, NPPalo Alto, CA 943041700853165
  3. Kathryn Beall, NNPPalo Alto, CA 943041518027473
  4. Kristine Boyle, NPPalo Alto, CA 943041649368861
  5. Kathryn Esperance, R.N.P.Palo Alto, CA 943041316093768
  6. Kari Ksar, NPPalo Alto, CA 943041285790410
  7. Onica Kuch, NPPalo Alto, CA 943041588615181
  8. Tara Anne Laureano, NPPalo Alto, CA 943041720002322

Common questions

What is Christopher James Walker, NP's NPI number?

Christopher James Walker, NP's National Provider Identifier (NPI) is 1790670701, issued on Jun 10, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Christopher James Walker, NP located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Christopher James Walker, NP's license?

NPPES lists California license number 95010375, 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.