Leroy Felix Owyang, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

52906 Issued in CA

Practice address

43195 Mission Blvd
Suite B-3
Fremont, CA 94539

Phone

(510) 651-0833

Fax

(510) 651-0845

NPI assigned

Aug 9, 2006

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

State licenses

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

{
    "created_epoch": "1155081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773273600000",
    "number": "1780694018",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "43195 MISSION BLVD STE B3",
            "city": "FREMONT",
            "state": "CA",
            "postal_code": "945395340",
            "telephone_number": "510-651-0833",
            "fax_number": "510-296-5714"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "43195 MISSION BLVD",
            "address_2": "SUITE B-3",
            "city": "FREMONT",
            "state": "CA",
            "postal_code": "94539",
            "telephone_number": "510-651-0833",
            "fax_number": "510-651-0845"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OWYANG",
        "first_name": "LEROY",
        "middle_name": "FELIX",
        "name_prefix": "Dr.",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-09",
        "last_updated": "2026-03-12",
        "certification_date": "2026-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "52906",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• General Practice Dentistry in Fremont, CA
• Providers in Fremont, CA by specialty
• General Practice Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 12, 2026; 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.