Gray Matters Therapy LLC

Gray Matters Therapy LLC is a healthcare organization registered as Professional Counselor in Winona, MN, holding Type 2 (organization) NPI 1720894710 since 2024. The authorized official on file is Michael Donnenwerth, Business Manager.

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NPI	1720894710
Entity type	Organization (Type 2)
Legal business name	Gray Matters Therapy LLC
Practice address	102 WALNUT ST STE 303, Winona, MN, 55987
Phone	5157104002
Enumeration date	2024-12-05
Last updated in NPPES	2026-01-28

Authorized official

Name	Michael Donnenwerth
Title	Business Manager
Phone	5074507091

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
101YP2500X	Professional Counselor	Primary	—	—

Copy-ready billing details

Provider: Gray Matters Therapy LLC
NPI: 1720894710
Taxonomy: 101YP2500X (Professional Counselor)
Address: 102 WALNUT ST STE 303, Winona, MN, 55987

Providers at this address

NPI	Name	Type	Specialty	Location
1336098623	Ann Gibson	Individual	Counseling Psychologist	Winona, MN

Verify this record

Cross-check NPI 1720894710 against the authoritative CMS record: view Gray Matters Therapy LLC on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Where is Gray Matters Therapy LLC located?

The practice location on file with NPPES is in Winona, MN.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-01-28. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-01-28.