Gregory Keith Cook, D.C.

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

4442 Issued in CO

Practice address

9660 Ralston Rd Ste 200
Arvada, CO 80004-4972

Phone

(303) 292-9992

NPI assigned

Jan 10, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CO

Enrollment records 1

Specialty

Chiropractic

Education

Western States College of Chiropractic, 1997

Medicare assignment

May accept Medicare assignment

Group practices

Downtowns Health Care LLCGroup PAC ID 2860655123, 3 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Downtowns Health Care LLC

  • Family Medicine Physician
  • Arvada, CO
  • NPI 1265701049

  Chiropractor

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1168387200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761091200000",
    "number": "1154470805",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2070 S INGALLS WAY",
            "city": "LAKEWOOD",
            "state": "CO",
            "postal_code": "802272515",
            "telephone_number": "303-909-0702"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9660 RALSTON RD STE 200",
            "city": "ARVADA",
            "state": "CO",
            "postal_code": "800044972",
            "telephone_number": "303-292-9992"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COOK",
        "first_name": "GREGORY",
        "middle_name": "KEITH",
        "name_prefix": "Dr.",
        "credential": "D.C.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-10",
        "last_updated": "2025-10-22",
        "certification_date": "2025-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "CO",
            "license": "4442",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Clare Comstock, MSW
• Charles Mathew Connolly, PTA
• Alexa Thais Contreras
• Jolene Frances Conway Clatterbuck, MA
• Brian Cook
• Kayla Michelle Cook, ND
• Lacy Bassham Cook, PHARMD
• Elizabeth Lynn Cooke, LCSW
• Janet L. Coon, LCSW
• Anna Cooper

• Chiropractor in Arvada, CO
• Providers in Arvada, CO by specialty
• Chiropractor in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.