NPIMap

Individual provider Active NPI

William Tsai, D.O.

  • Family Medicine Physician
  • Upland, CA
National Provider Identifier
1285620443
Registry record updated Apr 24, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
20A7115 Issued in CA
Practice address
510 N 13TH Ave Ste 101
Upland, CA 91786-4973
Phone
(909) 985-8838
Fax
(909) 985-8899
NPI assigned
Sep 23, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 24, 2024

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 20A7115 CA Primary

Addresses

Primary practice location

510 N 13TH Ave Ste 101
Upland, CA 91786-4973

Mailing address

510 N 13TH Ave Ste 101
Upland, CA 91786-4973
Phone (909) 985-8838

Other identifiers 1

IdentifierTypeStateIssuer
00AX71150MedicaidCA

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
I20031230000277 CA Practitioner - Family Practice 4082512959 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
William Tsai, D.O., IncGroup PAC ID 1254590532, 2 clinicians

Practice addresses (Care Compare)

510 N 13TH Ave
Suite 101
Upland, CA 91786-4973

Hospital & facility affiliations

  • Caring Hands Palliative & Hospice Inc Hospice, Rancho Cucamonga, CA, CCN B31605
  • Bristol Hospice - Inland Valley LLC Hospice, Ontario, CA, CCN 751690
  • San Antonio Regional Hospital Hospital, Upland, CA, CCN 050099
  • Pomona Valley Hospital Medical Center Hospital, Pomona, CA, CCN 050231
  • Montclair Manor Care Center Nursing home, Montclair, CA, CCN 055718
  • Chino Valley Health Care Cente Nursing home, Pomona, CA, CCN 055126

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
20A7115CAMDFamily Medicine Physician

Practice roles (5 of 6)

OrganizationSpecialtyStatusNew patients
San Antonio Regional Hospital Past Accepting new patients
Prime Healthcare Services - Montclair, LLC Past Accepting new patients
THC - Orange County, LLC Past Accepting new patients
Pomona Valley Hospital Medical Center Past Accepting new patients
Primecare Medical Group Past Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: wtsai@tsaifamilymedicineupland.officeally.direct

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
Montclair Manor Care Center LLCMontclair, CA, CCN 055718 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Aug 28, 2012
Aug 28, 2012

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 and National Provider Directory roles.

Hospital & facility affiliations 6

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": "1127433600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1713916800000",
    "number": "1285620443",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "510 N 13TH AVE STE 101",
            "city": "UPLAND",
            "state": "CA",
            "postal_code": "917864973",
            "telephone_number": "909-985-8838",
            "fax_number": "909-398-0187"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "510 N 13TH AVE STE 101",
            "city": "UPLAND",
            "state": "CA",
            "postal_code": "917864973",
            "telephone_number": "909-985-8838",
            "fax_number": "909-985-8899"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TSAI",
        "first_name": "WILLIAM",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-23",
        "last_updated": "2024-04-24",
        "certification_date": "2024-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "20A7115",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00AX71150",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Upland, CA

Sources for this page

Verify at the official NPI Registry.