Organization Active NPI

Tom Yi DO a Professional Corportation

  • Family Medicine Physician
  • Pasadena, CA
National Provider Identifier
1508970245
Registry record updated Apr 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
Legal business name
TOM YI DO A PROFESSIONAL CORPORTATION
Practice address
65 N Madison Ave Ste 612
Pasadena, CA 91101-5243
Phone
(626) 449-9800
Fax
(626) 449-3939
NPI assigned
Aug 19, 2006
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 2, 2026

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

Authorized official

Name
Dr. Tom Yi, D.O.NPI 1336198514
Title
President
Phone
(626) 449-9800

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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207Q00000X Primary

Addresses

Primary practice location

65 N Madison Ave Ste 612
Pasadena, CA 91101-5243

Mailing address

65 N Madison Ave Ste 612
Pasadena, CA 91101-5243
Phone (626) 449-9800

Other identifiers 1

IdentifierTypeStateIssuer
1336198514OtherNPI UNDER SOCIAL

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20070524000568 CA Part B Supplier - Clinic/Group Practice 6204933302 Receives reassigned benefits from 1 practitioner
Practice locations: Pasadena, 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
05D1061816Tom Yi DO65 N Madison Ave Ste 612, Pasadena, CA 91101Certificate of waiverNov 27, 2026

National Provider Directory

National Provider Directory

Locations

65 N Madison Ave
Ste 612
Pasadena, CA 91101
Phone (626) 449-9800

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1155945600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1775088000000",
    "number": "1508970245",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "65 N MADISON AVE STE 612",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911015243",
            "telephone_number": "626-449-9800",
            "fax_number": "626-449-3939"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "65 N MADISON AVE STE 612",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911015243",
            "telephone_number": "626-449-9800",
            "fax_number": "626-449-3939"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "TOM YI DO A PROFESSIONAL CORPORTATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-08-19",
        "last_updated": "2026-04-02",
        "certification_date": "2026-04-02",
        "status": "A",
        "authorized_official_last_name": "YI",
        "authorized_official_first_name": "TOM",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "626-449-9800",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "D.O."
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Family Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI UNDER SOCIAL",
            "identifier": "1336198514",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Pasadena, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 2, 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.