NPPES file of Aug 9, 2026

William M. Wallin, M.D.

Family Medicine Physician · Richmond, CA

William M. Wallin, M.D. is a family medicine physician with a practice address in Richmond, California, and NPI 1952320608, issued on Jul 19, 2006. Check the license (California G52040, 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
1952320608
Name
William M. Wallin
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G52040 CA
Self-reported in NPPES; status is on the state search
Practice location
5337 Zara Ave, Richmond, CA 94805
Phone
(510) 215-6827
Enumerated
Jul 19, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(510) 215-6827
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 family medicine physician records → All 17,133 in California → Look up another NPI →

Verify William M. Wallin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G52040    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 M. Wallin among 17,133 family medicine physician records in California

William M. Wallin, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2007 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 family medicine physician records list a practice address in Richmond

They are 27 of the 1,696 NPPES records with a practice address in Richmond, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 17,133 in California → Every provider in Richmond → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. James Pehling, M.D.Richmond, CA 948051497774160
  2. Lisa Scheffer, MDRichmond, CA 948051710138748
  3. Immanuel Asuncion, M.D.San Pablo, CA 948061245254580
  4. Norman Banks, MDSan Pablo, CA 948061396884888
  5. Robert Clark, M.D.San Pablo, CA 948061174511489
  6. Rebecca Clyde, MDRichmond, CA 948061184737348
  7. Joseph Dodge, MDSan Pablo, CA 948061588740906
  8. Hwei-Jung Hsu, M.D.San Pablo, CA 948061760558548

Common questions

What is William M. Wallin, M.D.'s NPI number?

William M. Wallin, M.D.'s National Provider Identifier (NPI) is 1952320608, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William M. Wallin, M.D. located?

The NPPES record lists a practice address at 5337 Zara Ave, Richmond, CA, 94805. Phone: (510) 215-6827. Providers update this record themselves, so call before visiting.

How can I verify William M. Wallin, M.D.'s license?

NPPES lists California license number G52040, 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.

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.