William Tsai D O Inc - Medicare Primary Care in Upland, CA

William Tsai D O Inc is a medicare enrolled primary clinic (Family Medicine) in Upland, California. The current practice location for William Tsai D O Inc is 510 N 13th Ave Ste 101, Upland, California. For appointments, you can reach them via phone at (909) 985-8838. The mailing address for William Tsai D O Inc is 510 N 13th Ave Ste 101, Upland, California and phone number is (909) 985-8838.

William Tsai D O Inc is licensed to practice in California (license number 20A7115). The clinic also participates in the medicare program and its NPI number is 1598876856. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (909) 985-8838.

Contact Information

William Tsai D O Inc
510 N 13th Ave Ste 101
Upland
CA 91786-4973
(909) 985-8838
Not Available

Map and Direction


Primary Care Clinic Profile

Full NameWilliam Tsai D O Inc
SpecialityFamily Medicine
Location510 N 13th Ave Ste 101, Upland, California
Authorized Official Name and PositionWilliam Tsai (PHYSICIAN OWNER)
Authorized Official Contact9099858838
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William Tsai D O Inc
510 N 13th Ave Ste 101
Upland
CA 91786-4973

Ph: (909) 985-8838
William Tsai D O Inc
510 N 13th Ave Ste 101
Upland
CA 91786-4973

Ph: (909) 985-8838

NPI Details:

NPI Number1598876856
Provider Enumeration Date08/31/2006
Last Update Date04/24/2024

Medicare PECOS Information:

Medicare PECOS PAC ID1254590532
Medicare Enrollment IDO20120306000295

Medical Identifiers

Medical identifiers for William Tsai D O Inc such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598876856NPI-NPPES
00AX71150MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 20A7115 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. William Tsai D O Inc acts as a billing entity for following providers:
Provider NameWilliam T Tsai
Provider TypePractitioner - Family Practice
Provider IdentifiersNPI Number: 1285620443
PECOS PAC ID: 4082512959
Enrollment ID: I20031230000277

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.