Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Jill Messer

Clinical Social Worker in East Lansing, MI · enumerated 2006.

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

National Provider Identifier

1881777472

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Registry record

Entity type Individual (Type 1)

Name Mary Jill Messer

Sex Female

Practice address 1151 Michigan Ave, Ste 106, East Lansing, MI, 48823

Phone (517) 332-7105

Fax (517) 372-2542

Enumeration date Oct 24, 2006

Last updated in NPPES Dec 17, 2010

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801004394 (MI) Primary

Other identifiers

Identifier	Type	State	Issuer
800890440	Other	-	BCBS
5080717	Other	-	AETNA
356443	Other	-	MHN
6276191	Medicaid	MI	-

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 Mary Messer's NPI record?

Cross-check NPI 1881777472 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881777472 active?

Yes, as of the latest NPPES snapshot, NPI 1881777472 is active (record last updated 2010-12-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-17.