EXCLUDEDPROVIDER
Individual Revocation

John Winthrop Pierce

South San Francisco, CA 94080

Public HHS-OIG LEIE exclusion record

John Winthrop Pierce of South San Francisco, CA is registered in the CMS NPI Registry under National Provider Identifier (NPI) 1134232887 with a primary specialty of Internal Medicine. According to the HHS-OIG List of Excluded Individuals/Entities (LEIE), John Winthrop Pierce is currently excluded from participation in federally funded health care programs due to license revocation, suspension, or surrender, as of November 19, 2020.

Status
Currently listed by HHS-OIG
Record type
Individual
Location
South San Francisco, CA 94080
Exclusion date
November 19, 2020
Exclusion type
Revocation (1128b4)
NPI
1134232887

Record summary

John Winthrop Pierce appears in the HHS-OIG List of Excluded Individuals/Entities (LEIE) public dataset as an individual record associated with South San Francisco, California. The latest imported LEIE dataset lists this record as currently excluded from participation in federally funded health care programs. The exclusion date shown in the source record is November 19, 2020, and the exclusion type is 1128b4, identified by HHS-OIG as license revocation, suspension, or surrender.

Source record

SourceHHS-OIG LEIE (public dataset)
Record typeIndividual
Current statusCurrently listed by HHS-OIG
Exclusion dateNovember 19, 2020
Exclusion typeLicense revocation, suspension, or surrender (1128b4)
NPI1134232887
Source dataset dateMay 2026

What this exclusion type means

HHS-OIG identifies exclusion type 1128b4 as “License revocation, suspension, or surrender.” License revocation, suspension, or surrender (permissive exclusion).

This exclusion type is a statutory category used by HHS-OIG in the LEIE dataset. The category describes the legal authority associated with the exclusion record, not a separate investigation or additional reporting by Excluded Provider.

Location and provider classification

This LEIE record is associated with South San Francisco, CA 94080. The listed provider category is Physician (MD, DO). The listed specialty is Internal Medicine.

NPI Registry context

The LEIE record lists NPI 1134232887. CMS NPPES public registry data lists this NPI as an individual record with primary taxonomy Internal Medicine (207R00000X). Registered practice location: San Francisco, CA. NPI enumeration date: Aug 16, 2006. NPPES status: Active. The NPI Registry lists credential: M.D..

NPI Registry data is administrative provider-identification data from CMS. It does not independently verify or explain the HHS-OIG exclusion record above. Verify exclusion status directly with HHS-OIG.

Other excluded providers in South San Francisco, CA

Other individuals and entities currently listed in the HHS-OIG LEIE public dataset with a South San Francisco, CA address.

Victor Bayudan Bumanglag Individual Patient Abuse
South San Francisco, CA · Conviction relating to patient abuse or neglect · Excluded Mar 2017

How to verify this record

This page is a public-record summary and should be treated as a possible LEIE match, not final identity verification. To verify the record, use the official HHS-OIG LEIE search and compare available identifying information through the official process. Name, location, provider category, specialty, exclusion date, and NPI should be treated as matching clues rather than final proof of identity.

What this page does not include

This page summarizes the HHS-OIG LEIE public dataset only. It does not search state Medicaid exclusion lists, state licensing-board actions, court records, malpractice records, employment history, civil lawsuits, or non-public investigations.

Verify with HHS-OIG Remove / correct this record

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