NPIMap

Organization Active NPI

Grand Lake Mental Health Center Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Stillwater, OK
National Provider Identifier
1992341671
Registry record updated Jul 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health Clinic/Center (Including Community Mental Health Center)Taxonomy code 261QM0801X
Legal business name
GRAND LAKE MENTAL HEALTH CENTER INC
Practice address
998 E Knotts Ave
Stillwater, OK 74075-3023
Phone
(405) 372-2202
Fax
(405) 372-2237
NPI assigned
Nov 18, 2019
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 11, 2025

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

Authorized official

Name
Joshua Cantwell
Title
Ceo
Phone
(918) 273-1841

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Clinic/Center (Including Community Mental Health Center) 261QM0801X Primary

Addresses

Primary practice location

998 E Knotts Ave
Stillwater, OK 74075-3023

Mailing address

114 W Delaware
Nowata, OK 74048-2601
Phone (918) 273-1841

Other names 1

  • GRAND Mental Health Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OK

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20091026000174 OK Part B Supplier - Clinic/Group Practice 4688711534 Receives reassigned benefits from 341 practitioners
44 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Pawhuska, OK; Perry, OK; Ponca City, OK; Pryor, OK; Skiatook, OK; Stillwater, OK; Claremore, OK; Tulsa, OK…

Other NPIs on the same Medicare enrollment 44

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

View all 44

National Provider Directory

National Provider Directory
Tax ID family
Grand Lake Mental Health Center Inc106 organizations share this tax ID, including this one

Organizations with this tax ID in the same state 13

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 13

Practitioners & affiliated clinicians

Practitioners 14

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

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1574035200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1752192000000",
    "number": "1992341671",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "114 W DELAWARE",
            "city": "NOWATA",
            "state": "OK",
            "postal_code": "740482601",
            "telephone_number": "918-273-1841",
            "fax_number": "918-273-1843"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "998 E KNOTTS AVE",
            "city": "STILLWATER",
            "state": "OK",
            "postal_code": "740753023",
            "telephone_number": "405-372-2202",
            "fax_number": "405-372-2237"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GRAND LAKE MENTAL HEALTH CENTER INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-11-18",
        "last_updated": "2025-07-11",
        "certification_date": "2025-07-11",
        "status": "A",
        "authorized_official_last_name": "CANTWELL",
        "authorized_official_first_name": "JOSHUA",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "918-273-1841"
    },
    "taxonomies": [
        {
            "code": "261QM0801X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Mental Health (Including Community Mental Health Center)",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "GRAND Mental Health",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Stillwater, OK

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 11, 2025; 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.