NPPES file of Aug 9, 2026

William Aron Walker, MD

Anatomic Pathology & Clinical Pathology Physician · Palm Springs, CA

William Aron Walker, MD is an anatomic pathology & clinical pathology physician with a practice address in Palm Springs, California, and NPI 1639170343, issued on Aug 3, 2005. Check the license (California G23101, as entered in NPPES) on the Medical Board of California; 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
1639170343
Name
William Aron Walker
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
G23101 CA
Self-reported in NPPES; status is on the state search
Practice location
100 S Sunrise Way, Palm Springs, CA 92262
Phone
(760) 320-4828
Enumerated
Aug 3, 2005
Record last updated
Jul 13, 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 William Aron Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G23101
    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
Open the California license search

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William Aron Walker among 1,554 anatomic pathology & clinical pathology physician records in California

William Aron Walker, MD is one of 1,554 anatomic pathology & clinical pathology physician 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Joline Abrahams, M.D.Palm Springs, CA 922621679567366
  2. David Kaminsky, M.D.Palm Springs, CA 922621760460471
  3. Robert Rosser, M.D.Palm Springs, CA 922621912991605
  4. Sara Smith, M.D.Palm Springs, CA 922621578728168
  5. Scott Allen, MDRancho Mirage, CA 922701841436193
  6. Barbara Comess, MDRancho Mirage, CA 922701396739090
  7. Dennis Frisman, MDRancho Mirage, CA 922701295729242
  8. Gabriel Giannini, M.D.Rancho Mirage, CA 922701255785747

Common questions

What is William Aron Walker, MD's NPI number?

William Aron Walker, MD's National Provider Identifier (NPI) is 1639170343, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Aron Walker, MD located?

The NPPES record lists a practice address at 100 S Sunrise Way, Palm Springs, CA, 92262. Phone: (760) 320-4828. Providers update this record themselves, so call before visiting.

How can I verify William Aron Walker, MD's license?

NPPES lists California license number G23101, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

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.