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Prolio

Doctor · Upland, CA

William Tsai

Listed as an active doctor in Upland — compiled from public records and refreshed weekly.

Licence no. 20A7115

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About this listing

William Tsai works as a doctor in Upland. Practices under license number 20A7115, cross-checked against public registries. Prolio refreshes this listing weekly so the public information stays current and you're not reading a page Google forgot about years ago. You can contact William Tsai directly from this page — we don't take a commission, we don't resell the lead, and we don't sit between you and the professional. If you're William Tsai and want to edit this profile yourself, you can claim it for free at the bottom of the page.

William Tsai — registro NPI #1285620443. Datos públicos NPPES (CMS).

This profile was assembled from public business records. It hasn't been claimed by the owner yet, so some details may be incomplete.

What we know

Primary category
Doctor
Area served
Upland, CA
Listing source
Public business records
Listing status
Active · unclaimed
Last refreshed
Jul 8, 2026

510 N 13TH AVE STE 101, Upland, CA, 917864973, Upland, CA

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