Gray Matters Therapy LLC

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

Legal business name

GRAY MATTERS THERAPY LLC

Practice address

102 Walnut St Ste 303
Winona, MN 55987-5641

Phone

(515) 710-4002

NPI assigned

Dec 5, 2024

Last updated

Jan 28, 2026By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Michael Donnenwerth, DPM

Title

Business Manager

Phone

(507) 450-7091

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MN

Enrollment records 1

Locations

Practitioners 5

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Amy Donnenwerth

  • Professional Counselor
  • Winona, MN
  • NPI 1528711892
  Medicare reassignment NPD
• Ann Gibson, PHD

  • Counseling Psychologist
  • Winona, MN
  • NPI 1336098623
  Medicare reassignment NPD
• Kathleen Grace Karnick, LPCC

  • Professional Counselor
  • Minnetonka, MN
  • NPI 1912403288
  Medicare reassignment NPD
• Richard L Romeyn, M.D.

  • Specialist
  • Winona, MN
  • NPI 1669447041
  NPD (past)
• Judi Lynn Tekautz, ATC

  • Athletic Trainer
  • Winona, MN
  • NPI 1063478907
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1733356800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1769558400000",
    "number": "1720894710",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 LATSCH SQ STE 203",
            "city": "WINONA",
            "state": "MN",
            "postal_code": "559872995",
            "telephone_number": "515-710-4002"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "102 WALNUT ST STE 303",
            "city": "WINONA",
            "state": "MN",
            "postal_code": "559875641",
            "telephone_number": "515-710-4002"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GRAY MATTERS THERAPY LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-12-05",
        "last_updated": "2026-01-28",
        "certification_date": "2026-01-28",
        "status": "A",
        "authorized_official_last_name": "DONNENWERTH",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_title_or_position": "BUSINESS MANAGER",
        "authorized_official_telephone_number": "507-450-7091",
        "authorized_official_credential": "DPM"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jeston Edward Glish
• Daniel L Goltz, PHARM.D.
• Megan Graf
• Grand St Paul CVS LLC (CVS Pharmacy #16472)
• Gary Lee Granseth, DDS
• Faith Grcic
• Great River Chiropractic PLLC
• Joselyn Emily Greene
• Rochelle Greene
• Lukas Greshowak

• Professional Counselor in Winona, MN
• Providers in Winona, MN by specialty
• Professional Counselor in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.