Thomas William Callan I, M. D.

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

GFE26074 Issued in CA

Practice address

230 Cajon View Dr
El Cajon, CA 92020-7502

Phone

(619) 440-4421

Fax

(619) 593-2120

NPI assigned

Dec 28, 2008

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1230422400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1678147200000",
    "number": "1699911487",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 904",
            "city": "EL CAJON",
            "state": "CA",
            "postal_code": "920220904",
            "telephone_number": "619-440-4421",
            "fax_number": "619-593-2120"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "230 CAJON VIEW DR",
            "city": "EL CAJON",
            "state": "CA",
            "postal_code": "920207502",
            "telephone_number": "619-440-4421",
            "fax_number": "619-593-2120"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAN",
        "first_name": "THOMAS",
        "middle_name": "WILLIAM",
        "name_prefix": "Dr.",
        "name_suffix": "I",
        "credential": "M. D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-12-28",
        "last_updated": "2023-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "GFE26074",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• California Children's Services
• California Homes for Seniors, Inc. (California Home for Seniors)
• California Sub-Acute Care Medical Group Inc
• Elizabeth Brewer Callahan
• Mackenzie Callahan
• Hazel Boltron Callicott, FNP
• Chimere Callis
• Erin Brooke Calloway
• Guillermo Camano
• Camellia Hospice of East San Diego County

• Hematology & Oncology Physician in El Cajon, CA
• Providers in El Cajon, CA by specialty
• Hematology & Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.