Browse Health
Primary Care Doctor, Family Practitioner
16 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. William Tsai is Excellent. Dr. Tsai has been reviewed by 13 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 4.0
Courteous Staff 4.4
Accurate Diagnosis 4.3
Bedside Manner 4.5
Spends Time with Me 4.7
Follows Up After Visit 3.3

Specialties & Research

Dr. William Tsai, DO is board certified in Family Medicine.

Education & Awards

Dr. Tsai graduated from Western University of Health Sciences, Pomona. He has 2 awards.

Patients' Choice Award (2015)
Compassionate Doctor Recognition (2015)


Dr. Tsai has 14 hospital affiliations:

  • Chino Valley Medical Center 
  • Pomona Valley Hospital Medical Center 


  • Mandarin
  • Spanish
  • Chinese

Similar doctors nearby

Dr. Louis Biscotti

Family Medicine
41 years experience
Montclair, CA

Dr. Nancy Lim

Family Medicine
40 years experience
Montclair, CA

Dr. Jamal Rahman

Family Medicine
Montclair, CA

Dr. Azita Hassas

General Practice
Montclair, CA

Dr. David Young

Family Medicine
30 years experience
Montclair, CA

Dr. Thuy Nguyen

Family Medicine
12 years experience
Montclair, CA
Search All Similar Doctors
Additional Information
Dr. William Tsai DO is a male Family Practitioner, has 16 years of experience and practices in Family Medicine.
Where does Dr. William Tsai practice?
Dr. William Tsai has 1 office location.
Dr. William Tsai practices Family Medicine near Montclair, CA.
See Montclair Primary Care Doctors.