Leona Joyce Foster

Primary specialty

Peer SpecialistTaxonomy code 175T00000X

License

MPSS-EYVIOQ Issued in CA

Practice address

1350 Arnold Dr Ste 202
Martinez, CA 94553-4190

Phone

(925) 313-7755

Fax

(925) 646-4165

NPI assigned

Sep 10, 2026

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1788998400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1649180761",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1350 ARNOLD DR STE 202",
            "city": "MARTINEZ",
            "state": "CA",
            "postal_code": "945534190",
            "telephone_number": "925-313-7755",
            "fax_number": "925-646-4165"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1350 ARNOLD DR STE 202",
            "city": "MARTINEZ",
            "state": "CA",
            "postal_code": "945534190",
            "telephone_number": "925-313-7755",
            "fax_number": "925-646-4165"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FOSTER",
        "first_name": "LEONA",
        "middle_name": "JOYCE",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-09-10",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "175T00000X",
            "taxonomy_group": "",
            "desc": "Peer Specialist",
            "state": "CA",
            "license": "MPSS-EYVIOQ",
            "primary": true
        },
        {
            "code": "373H00000X",
            "taxonomy_group": "",
            "desc": "Day Training/Habilitation Specialist",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Silvia Fonseca, MD
• Stuart Forman
• Robert V. Formanek Jr., M.D.
• Mercedes Forster, MD
• Anatoliy S. Fortenko, MD
• Linda Ann Foster, MS, MFT
• Susan Ann Foster
• Wanda Carol Fox, MASTERS
• Connor James Francis, DDS
• Stephen Connor Francis, D.D.S.

• Peer Specialist in Martinez, CA
• Providers in Martinez, CA by specialty
• Peer Specialist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.