Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michelle Lynn Messick, CSAC

Addiction (Substance Use Disorder) Counselor in Marshfield, WI · enumerated 2018 · practices at Gateways Counseling Services, Inc.

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

National Provider Identifier

1346740016

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Registry record

Entity type Individual (Type 1)

Name Michelle Lynn Messick

Credential CSAC

Sex Female

Practice address Marshfield, WI, 54449

Phone (715) 898-1665

Fax (715) 898-1240

Enumeration date Feb 19, 2018

Last updated in NPPES Jan 2, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 18329-130 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
16643	Other	WI	LICENSE

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 Michelle Messick's NPI record?

Cross-check NPI 1346740016 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346740016 active?

Yes, as of the latest NPPES snapshot, NPI 1346740016 is active (record last updated 2023-01-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-02.