Grant Hayes Thomas, DO

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

DR.0074262 Issued in CO

Practice address

4318 Trail Boss Dr
Castle Rock, CO 80104-7512

Phone

(303) 338-4545

NPI assigned

Mar 28, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Campbell Univ School of Osteopathic Medicine, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Colorado Permanente Medical Group PCGroup PAC ID 1254238454, 1,325 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: grant.thomas@hca3.eclinicaldirectplus.com

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.

• Colorado Permanente Medical Group, P.C.

  • Internal Medicine Physician
  • Denver, CO
  • NPI 1760599724
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1648425600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756425600000",
    "number": "1972253169",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10350 E DAKOTA AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802471314"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4318 TRAIL BOSS DR",
            "city": "CASTLE ROCK",
            "state": "CO",
            "postal_code": "801047512",
            "telephone_number": "303-338-4545"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "601 E Hampden Ave Ste 470",
            "address_purpose": "LOCATION",
            "city": "Englewood",
            "state": "CO",
            "postal_code": "801132797",
            "country_code": "US",
            "telephone_number": "303-788-3100",
            "fax_number": "303-788-3197",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THOMAS",
        "first_name": "GRANT",
        "middle_name": "HAYES",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-28",
        "last_updated": "2025-08-29",
        "certification_date": "2025-08-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CO",
            "license": "DR.0074262",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "KAISER COMMERCIAL NUMBER",
            "identifier": "029699",
            "state": "CO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9000207700",
            "state": "CO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepiceast.kp.org:14430/Interconnect-prodcom/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "4318 Trail Boss Dr",
            "city": "Castle Rock",
            "state": "CO",
            "country_code": "US",
            "postal_code": "801047512",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• The Brain Center of Colorado
• The Little Clinic of Colorado LLC
• Stephanie Then
• Rita E Thieme, M.D.
• Brianne Thomas
• Molly Hulihan Thomas, MS, BCBA
• Robert Thomas, MD
• Dwayne Bryan Thomason, D.O.
• Asia Thompson, MS, RD
• Dennis M Thompson, DDS

• Family Medicine Physician in Castle Rock, CO
• Providers in Castle Rock, CO by specialty
• Family Medicine Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 29, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.