James Thomas Cassleman, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

0101250317 Issued in VA

Practice address

275 S Aspen St
Aurora, CO 80011-9562

Phone

(720) 847-9355

NPI assigned

Jun 10, 2010

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 VA

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": "1276128000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774396800000",
    "number": "1659691863",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "275 S ASPEN ST",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800119562",
            "telephone_number": "720-847-4240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "275 S ASPEN ST",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800119562",
            "telephone_number": "720-847-9355"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASSLEMAN",
        "first_name": "JAMES",
        "middle_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-06-10",
        "last_updated": "2026-03-25",
        "certification_date": "2026-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "VA",
            "license": "0101250317",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Megan Marie Casselberry, CRNA
• Ivan Casserly, MD
• Courtney Morgan Noles Cassias, CRNA
• David Cassidy
• Lindsey Cassidy, M.D.
• Karen Castaneda, MD
• Milena Anaya Sequoia Castaneda
• Nicolette Rachel Castaneda, MD
• Jessica Castano, PSY.D.
• Kylie Castans, O.D.

• Family Medicine Physician in Aurora, CO
• Providers in Aurora, 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 Mar 25, 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.