John W. Walsh, MD
Anatomic Pathology Physician · Walnut Creek, CA
John W. Walsh, MD is an anatomic pathology physician with a practice address in Walnut Creek, California, and NPI 1164500260, issued on Nov 2, 2006. Check the license (California G11029, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John W. Walsh
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology Physician 207ZP0101X
- License number
- G11029 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1425 S Main St, Walnut Creek, CA 94596
- Phone
- (925) 295-4000
- Enumerated
- Nov 2, 2006
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00G110290 CA
- Entity
- Type 1 · individual
Also registered at 1425 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John W. Walsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G11029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $146.14
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 382 providers of this specialty with any payment received $3,145.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Anatomic Pathology Physician providers in California
There are 386 anatomic pathology physician records in California.
Other anatomic pathology physician records in California
- Abul Abbas, MBBSSan Francisco, CA1881652964
- John Abele, MDSacramento, CA1063493625
- Mitchell Adachi, MDSan Francisco, CA1720166366
- Brad Adler, M.D.Ventura, CA1003979618
- Ashna Aggarwal, MDSacramento, CA1235624362
- Naoki Akanuma, MD PHDSacramento, CA1881222974
- Najeeb Alshak, MDLos Angeles, CA1487721387
- Charles Amezcua, M.D.Santa Rosa, CA1245373992
- Joseph Anderson, M.D.San Rafael, CA1003002494
- Shehla Arain, M.D.Yorba Linda, CA1497927784
Common questions
What is John W. Walsh, MD's NPI number?
John W. Walsh, MD's National Provider Identifier (NPI) is 1164500260, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John W. Walsh, MD located?
The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.
How can I verify John W. Walsh, MD's license?
NPPES lists California license number G11029, 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. 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.