Thomas Jeffrey Ferguson, M.D., PH.D.

Primary specialty

Occupational Medicine PhysicianTaxonomy code 2083X0100X

License

G63228 Issued in CA

Practice address

1 Shields Ave
Davis, CA 95616-5270

Phone

(530) 752-2300

Fax

(530) 752-2306

NPI assigned

Aug 10, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1155168000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1710998422",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3044 DONATO LN",
            "city": "DAVIS",
            "state": "CA",
            "postal_code": "956166553",
            "telephone_number": "530-753-6499"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 SHIELDS AVE",
            "city": "DAVIS",
            "state": "CA",
            "postal_code": "956165270",
            "telephone_number": "530-752-2300",
            "fax_number": "530-752-2306"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FERGUSON",
        "first_name": "THOMAS",
        "middle_name": "JEFFREY",
        "credential": "M.D., PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-10",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207PT0002X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Medical Toxicology",
            "state": "CA",
            "license": "G63228",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G63228",
            "primary": false
        },
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "CA",
            "license": "G63228",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marie-Celine Farver, RN BSN IBCLC RLC
• Jay Michael Feldman, M.D.
• Judith Feldman, LCSW
• Kenneth H Ferguson, M.D.
• Melissa Ferguson
• Linda Fernandes, LVN
• Leticia Cedalia Fernandez-Acosta
• Andrew Fernandez
• Jessica Fernandez, NP
• Tracy C. Ferragamo, DPM

• Occupational Medicine Physician in Davis, CA
• Providers in Davis, CA by specialty
• Occupational Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.