William J. Tsai, M.D. Inc.

Diplomate, American Board of Internal Medicine
Associate Clinical Professor of Medicine
University of California, Irvine

William J. Tsai, M.D.

Board-certified in internal medicine, Dr. William Tsai completed his residency training at New York Hospital Medical Center of Queens, Flushing, and at Memorial Sloane Kettering Cancer Center, in New York City. Dr. Tsai also volunteered with the New York Free Clinic in Queens. During medical school he was a member of an honor society.

Since September 2003, Dr. Tsai has been operating his private practice located in the city of Irvine. He is an Associate Clinical Professor of Medicine for University of California, Irvine. William J. Tsai, M.D. Inc. is successfully catering to numerous patients in Irvine, Newport Beach and its neighboring cities. Dr. Tsai and his friendly staff dedicate themselves to working hard for their patients. The goal is to be each patient's healthcare advocate in educating, monitoring and assisting all medical needs. He is also fluent in Mandarin and Taiwanese.


Our office is conveniently located at the intersection of Jamboree and MacArthur Blvd.; in the CenterPointe Business Park. We are in a 2-storied gray/white colored 19742 building. We're neighbors to Google/Equinox; across the street from Taco Bell, Mindspeed and Newport Lexus.


We accept the majority of all PPO's

Yes we accept...

PPO's (fee for service)

Medicare Part B

CASH rates @

$220.00 new pt 1st OV

$140.00 est pt per OV

We do not accept...

HMO's (managed care)

Medi-Cal (CalOptima)


Blue Cross Pathway Tiered

HealthNet Enhanced Care

Mission Gabriels Oboe - Yo Yo Ma
00:00 / 00:00


19742 MacArthur Blvd,

Suite 101

Irvine, CA 92612

949-955-0202 tel

949-955-0203 fax

Office Hours:

Monday to Friday

10:00am to 5:00pm

Closed on weekends​​

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