Organization Active NPI

Tri-Valley Medical Associates, Inc.

  • Internal Medicine Physician
  • Livermore, CA
National Provider Identifier
1801047931
Registry record updated Jun 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
TRI-VALLEY MEDICAL ASSOCIATES, INC.
Practice address
87 Fenton St Ste 210
Livermore, CA 94550-4159
Phone
(925) 371-8885
Fax
(925) 371-8884
NPI assigned
Oct 7, 2008
Last updated
Jun 23, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 23, 2026

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

Authorized official

Name
Dr. Tsung Peter Wong, MDNPI 1073513156
Title
President
Phone
(925) 371-8885

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X NU
Internal Medicine Physician 207R00000X NU Primary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X NU
Pulmonary Disease Physician 207RP1001X NU
Sleep Medicine (Family Medicine) Physician 207QS1201X NU

Addresses

Primary practice location

87 Fenton St Ste 210
Livermore, CA 94550-4159

Mailing address

87 Fenton St Ste 210
Livermore, CA 94550-4159
Phone (925) 371-8885

Other practice location 1

6155 Stoneridge Dr Ste 101
Pleasanton, CA 94588-3365
Phone (925) 460-9903

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20081202000353 CA Part B Supplier - Clinic/Group Practice 5597826164 Receives reassigned benefits from 7 practitioners
Practice locations: Livermore, CA

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
05D1100560Tri-Valley Medical Associates87 Fenton Street, Ste 210, Livermore, CA 94550Certificate of waiverJun 7, 2027

National Provider Directory

National Provider Directory

Locations

1133 E Stanley Blvd
Ste 117
Livermore, CA 94550
Phone (925) 371-8885

Practitioners & affiliated clinicians

Practitioners 7

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1223337600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1782172800000",
    "number": "1801047931",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "87 FENTON ST STE 210",
            "city": "LIVERMORE",
            "state": "CA",
            "postal_code": "945504159",
            "telephone_number": "925-371-8885",
            "fax_number": "925-371-8884"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "87 FENTON ST STE 210",
            "city": "LIVERMORE",
            "state": "CA",
            "postal_code": "945504159",
            "telephone_number": "925-371-8885",
            "fax_number": "925-371-8884"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6155 Stoneridge Dr Ste 101",
            "address_purpose": "LOCATION",
            "city": "Pleasanton",
            "state": "CA",
            "postal_code": "945883365",
            "country_code": "US",
            "telephone_number": "925-460-9903",
            "fax_number": "925-460-9904",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "TRI-VALLEY MEDICAL ASSOCIATES, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2008-10-07",
        "last_updated": "2026-06-23",
        "certification_date": "2026-06-23",
        "status": "A",
        "authorized_official_last_name": "WONG",
        "authorized_official_first_name": "TSUNG",
        "authorized_official_middle_name": "PETER",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "925-371-8885",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207QS1201X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Sleep Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Livermore, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.