Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Zerega, MD

Gastroenterology Physician in Lake St Louis, MO · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1073505178

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Registry record

Entity type Individual (Type 1)

Name Michael J Zerega

Credential MD

Sex Male

Practice address 200 Brevco Plz, Suite 208, Lake St Louis, MO, 63367

Phone (636) 561-9020

Fax (636) 561-6208

Enumeration date Aug 16, 2005

Last updated in NPPES Apr 2, 2015

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 2000154596 (MO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1073505178	Medicaid	MO	-
P01015409	Other	MO	RAILROAD MEDICARE
18943	Other	-	BC BS MO

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Michael Zerega's NPI record?

Cross-check NPI 1073505178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1073505178 active?

Yes, as of the latest NPPES snapshot, NPI 1073505178 is active (record last updated 2015-04-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-02.