EXCLUDEDPROVIDER
Individual Revocation

David Lawrence Hamacher

Gladstone, MI 49837

Public HHS-OIG LEIE exclusion record

David Lawrence Hamacher of Gladstone, MI is registered in the CMS NPI Registry under National Provider Identifier (NPI) 1851307961 with a primary specialty of Obstetrics & Gynecology, Gynecology. According to the HHS-OIG List of Excluded Individuals/Entities (LEIE), David Lawrence Hamacher is currently excluded from participation in federally funded health care programs due to license revocation, suspension, or surrender, as of December 19, 2024.

Status
Currently listed by HHS-OIG
Record type
Individual
Location
Gladstone, MI 49837
Exclusion date
December 19, 2024
Exclusion type
Revocation (1128b4)
NPI
1851307961

Record summary

David Lawrence Hamacher appears in the HHS-OIG List of Excluded Individuals/Entities (LEIE) public dataset as an individual record associated with Gladstone, Michigan. 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 December 19, 2024, 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 dateDecember 19, 2024
Exclusion typeLicense revocation, suspension, or surrender (1128b4)
NPI1851307961
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 Gladstone, MI 49837. The listed provider category is Physician (MD, DO). The listed specialty is OB/GYN.

NPI Registry context

The LEIE record lists NPI 1851307961. CMS NPPES public registry data lists this NPI as an individual record with primary taxonomy Obstetrics & Gynecology, Gynecology (207VG0400X). Registered practice location: Escanaba, MI. NPI enumeration date: Jul 31, 2006. NPPES status: Active. The NPI Registry lists credential: MDFACOG.

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 Gladstone, MI

Other individuals and entities currently listed in the HHS-OIG LEIE public dataset with a Gladstone, MI address.

Cissy Louise Mcgahan Individual Patient Abuse
Gladstone, MI · Conviction relating to patient abuse or neglect · Excluded Oct 2021
Marc David Gillis Individual Drug Felony
Gladstone, MI · Felony conviction relating to controlled substance · Excluded Mar 2002
Linda Larson Individual Revocation
Gladstone, MI · License revocation, suspension, or surrender · Excluded May 1993

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

Related

More Excluded Individuals in Michigan More Records in Gladstone More Revocation Records