NPIMap

Individual provider Active NPI

Wilbert Timothy Tsai, MD

  • Family Medicine Physician
  • Pomona, CA
National Provider Identifier
1013114420
Registry record updated Aug 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
A107727 Issued in CA
Practice address
1818 N Orange Grove Ave Ste 302
Pomona, CA 91767-3028
Phone
(909) 326-0330
Fax
(909) 326-0340
NPI assigned
Jun 29, 2007
Last updated
Aug 17, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 17, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X A107727 CA Primary

Addresses

Primary practice location

1818 N Orange Grove Ave Ste 302
Pomona, CA 91767-3028

Mailing address

1818 N Orange Grove Ave Ste 302
Pomona, CA 91767-3028
Phone (909) 326-0330

Other identifiers 1

IdentifierTypeStateIssuer
A107727OtherCACALIFORNIA LICENCE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101209000174 CA Practitioner - Family Practice 6800083346 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

1818 N Orange Grove Ave
Pomona, CA 91767-3028
Phone (909) 326-0330

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
107727CAMDClinical Social Worker
A107727CAMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Casa Colina Hospital and Centers for Healthcare Current Accepting new patients
Pomona Valley Hospital Medical Center Past Accepting new patients
San Dimas Community Hospital, Inc. Past Accepting new patients
San Antonio Regional Hospital Past Accepting new patients
Prime Healthcare Services - Montclair, LLC Past Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: casacolina@direct.casacolina.org

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Bristol Hospice - Inland Valley, L.L.C.Rancho Cucamonga, CA, CCN 751690 Hospice Contracted Managing Employee May 1, 2021

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1183075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786924800000",
    "number": "1013114420",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1818 N ORANGE GROVE AVE STE 302",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917673028",
            "telephone_number": "909-326-0330",
            "fax_number": "909-326-0340"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1818 N ORANGE GROVE AVE STE 302",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917673028",
            "telephone_number": "909-326-0330",
            "fax_number": "909-326-0340"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TSAI",
        "first_name": "WILBERT",
        "middle_name": "TIMOTHY",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-29",
        "last_updated": "2026-08-17",
        "certification_date": "2026-08-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A107727",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CALIFORNIA LICENCE",
            "identifier": "A107727",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Pomona, CA

Sources for this page

Verify at the official NPI Registry.