NPPES file of Aug 9, 2026

William L. Wolfson, MD

Anatomic Pathology & Clinical Pathology Physician · Newport Beach, CA

William L. Wolfson, MD is an anatomic pathology & clinical pathology physician with a practice address in Newport Beach, California, and NPI 1891731295, issued on Jun 22, 2006. Check the license (California G21387, 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
1891731295
Name
William L. Wolfson
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
G21387 CA
Self-reported in NPPES; status is on the state search
Practice location
One Hoag Drive, Newport Beach, CA 92658
Phone
(949) 764-5632
Enumerated
Jun 22, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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 anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →

Also registered at One Hoag Drive

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

  1. Robert Dillman, MD FACPHematology & Oncology Physician1538225438
  2. Steven Ey, M.D.Addiction Medicine (Family Medicine) Physician1821013285
  3. Jennifer Overstreet, M.D.Diagnostic Radiology Physician1043480965
  4. Joan Rost, CRNFARegistered Nurse First Assistant1750596698
  5. Arell Shapiro, M.D.Anatomic Pathology & Clinical Pathology Physician1063448132
  6. Melvin Silverstein, MDSurgical Oncology Physician1699707372

Verify William L. Wolfson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G21387    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 L. Wolfson among 1,554 anatomic pathology & clinical pathology physician records in California

William L. Wolfson, 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 57% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 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.

All 1,554 in California → Every provider in Newport Beach → Anatomic Pathology & Clinical Pathology Physician nationwide →

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

  1. Howard Epstein, M.D.Newport Beach, CA 926581003852674
  2. Arell Shapiro, M.D.Newport Beach, CA 926581063448132
  3. Janet Stallman, MDNewport Beach, CA 926581245276476
  4. Denise Van Horn, M. D.Newport Beach, CA 926581699706242
  5. Renuka Agrawal, M.D.Aliso Viejo, CA 926561174733059
  6. George Csathy, M.D.Aliso Viejo, CA 926561740402841
  7. Jian-Feng WangAliso Viejo, CA 926561891929931
  8. David Braxton, M.D.Newport Beach, CA 926631982921292

Common questions

What is William L. Wolfson, MD's NPI number?

William L. Wolfson, MD's National Provider Identifier (NPI) is 1891731295, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William L. Wolfson, MD located?

The NPPES record lists a practice address at One Hoag Drive, Newport Beach, CA, 92658. Phone: (949) 764-5632. Providers update this record themselves, so call before visiting.

How can I verify William L. Wolfson, MD's license?

NPPES lists California license number G21387, 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.