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WILLIAM TSAI D O INC
NPI 1598876856
Family Medicine in Upland, CA

Active since August 31, 2006
510 N 13TH AVE STE 101, UPLAND, CA 91786(909) 985-8838 Get Directions Write a Review

NPPES record last updated: April 24, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 24, 2024, Aug 22, 2020 (2 updates tracked since 2020).

About William Tsai D O Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM TSAI D O INC (NPI 1598876856) is a healthcare organization registered as a family medicine in Upland, California and active in the NPI registry since August 2006. The organization lists William Tsai, Physician Owner, as its authorized official.

NPPES Registry Identity

NPI1598876856
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameWILLIAM TSAI D O INC
Location Address510 N 13TH AVE STE 101Upland, CA 91786-4973
Mailing Address510 N 13th Ave Ste 101Upland, CA 91786-4973 · (909) 985-8838
Phone(909) 985-8838
Organization SubpartNo
Authorized OfficialWilliam TsaiPhysician Owner · (909) 985-8838
Enumeration DateAugust 31, 2006
Last NPPES UpdateApril 24, 20242 updates tracked since enumeration
NPPES CertifiedApril 24, 2024
✔ NPI 1598876856 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · 20A7115
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
510 N 13TH AVE STE 101, Upland, CA 91786
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Other Identifiers 1

Medicaid00AX71150CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LISA CHI
Nurse Practitioner (Family)
510 N 13TH AVE STE 101
UPLAND, CA 91786
San Bernardino County (909) 985-8838
DR. WILLIAM TSAI D.O.
Family Medicine
510 N 13TH AVE STE 101
UPLAND, CA 91786
San Bernardino County (909) 985-8838
JIE LIN
Nurse Practitioner (Family)
510 N 13TH AVE STE 101
UPLAND, CA 91786
San Bernardino County (909) 985-8838

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Tsai D O Inc's NPI number?

The NPI number for William Tsai D O Inc is 1598876856. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is William Tsai D O Inc located?

William Tsai D O Inc is located at 510 N 13th Ave Ste 101, Upland, CA 91786. The listed phone number is (909) 985-8838.

What is William Tsai D O Inc's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for William Tsai D O Inc was last updated on April 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.