Willow Tree Collective PLLC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Legal business name

WILLOW TREE COLLECTIVE PLLC

Practice address

825 W 11TH St Ste 1C
Austin, TX 78701-2052

Phone

(713) 591-7247

NPI assigned

Apr 24, 2025

Organization subpart

No

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

Authorized official

Name

Margaret MattinglyNPI 1841870201

Title

Founder & Lead Therapist

Phone

(713) 591-7247

Specialties & licenses 1

Addresses

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Margaret Mattingly, LPC

  • Mental Health Counselor
  • Austin, TX
  • NPI 1841870201
  NPD Authorized official

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

{
    "created_epoch": "1745452800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1745452800000",
    "number": "1265229835",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10106 WOODSTOCK DR",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787534444",
            "telephone_number": "713-591-7247"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "825 W 11TH ST STE 1C",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787012052",
            "telephone_number": "713-591-7247"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WILLOW TREE COLLECTIVE PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-04-24",
        "last_updated": "2025-04-24",
        "certification_date": "2025-04-24",
        "status": "A",
        "authorized_official_last_name": "MATTINGLY",
        "authorized_official_first_name": "MARGARET",
        "authorized_official_title_or_position": "FOUNDER & LEAD THERAPIST",
        "authorized_official_telephone_number": "713-591-7247"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David James Willoughby
• Vickie Willoughby, DO
• Willow Anesthesia Management, LLC
• Willow Behavioral Health LLC.
• Willow Home Care Services LLC
• Ashley Wills, APRN
• Jessica Wills, FNP-C
• Katherine Otecca Wills, AGACNP-BC
• Sharon M. Wills, PH.D.
• Wilmette Psychotherapy Associates, LTD

• Mental Health Counselor in Austin, TX
• Providers in Austin, TX by specialty
• Mental Health Counselor in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.