Alexander Gregory Hayden, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

DR.0071198 Issued in CO

Practice address

280 Exempla Cir
Lafayette, CO 80026-3370

Phone

(303) 338-4545

NPI assigned

Apr 7, 2020

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 1

Other names 1

• Alex Hayden Other name

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1586217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788307200000",
    "number": "1356970636",
    "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": "280 EXEMPLA CIR",
            "city": "LAFAYETTE",
            "state": "CO",
            "postal_code": "800263370",
            "telephone_number": "303-338-4545"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "13001 E 17th Pl",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800452570",
            "country_code": "US",
            "telephone_number": "303-724-1784",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAYDEN",
        "first_name": "ALEXANDER",
        "middle_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-07",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CO",
            "license": "DR.0071198",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9000183562",
            "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": "280 Exempla Cir",
            "city": "Lafayette",
            "state": "CO",
            "country_code": "US",
            "postal_code": "800263370",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "ALEX",
            "last_name": "HAYDEN",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Stephanie Marie Hath, D.C.
• Courtney Elaine Hattle, OTR/L, OTD
• Valorie Corene Hauck-Sorensen, CNM
• Brittany Haugen, PA-C
• David S Haukeness, MD
• Curtis J. Hayes, D.D.S.
• Kate Demling Hayes, L.C.S.W.
• Kathy Haymes
• Amy Hazelwood, DMD
• Healthone Clinic Services - Orthopedic Specialists LLC

• Hematology & Oncology Physician in Lafayette, CO
• Providers in Lafayette, CO by specialty
• Hematology & Oncology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.