Grand Mental Health

Primary specialty

Peer SpecialistTaxonomy code 175T00000X

Legal business name

GRAND MENTAL HEALTH

Practice address

405 E Excelsior Ave
Vinita, OK 74301-4226

Phone

(800) 722-3611

NPI assigned

May 6, 2026

Organization subpart

No

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

Authorized official

Name

Mr. Dallas Blake Dempsey

Title

Peer Recovery Support Specialist

Phone

(918) 815-5944

Specialties & licenses 1

Addresses

Locations

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

{
    "created_epoch": "1778025600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1778025600000",
    "number": "1790612661",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26730 S 670 RD",
            "city": "GROVE",
            "state": "OK",
            "postal_code": "743446278",
            "telephone_number": "800-722-3611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "405 E EXCELSIOR AVE",
            "city": "VINITA",
            "state": "OK",
            "postal_code": "743014226",
            "telephone_number": "800-722-3611"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GRAND MENTAL HEALTH",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-05-06",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A",
        "authorized_official_last_name": "DEMPSEY",
        "authorized_official_first_name": "DALLAS",
        "authorized_official_middle_name": "BLAKE",
        "authorized_official_title_or_position": "PEER RECOVERY SUPPORT SPECIALIST",
        "authorized_official_telephone_number": "918-815-5944",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "175T00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Peer Specialist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Grand Lake Mental Health Center, Inc.
• Grand Lake Mental Health Center, Inc.
• Grand Lake Mental Health Center, Inc.
• Grand Lake Mental Health Center, Inc.
• Grand Lake Mental Health Center, Inc.
• Megan Granger
• Travis Vernon Grant
• Green Country Spine & Sport, PLLC
• Teena Greenfeather
• Johanna Greenwood, RDN

• Peer Specialist in Vinita, OK
• Providers in Vinita, OK by specialty
• Peer Specialist in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 2026; 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.