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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).

Learn more about Dr. Clark Tsai:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Clark Tsai is Good. Dr. Tsai has been reviewed by 10 patients who have provided 4 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 3.9
Courteous Staff 4.2
Accurate Diagnosis 3.6
Bedside Manner 4.0
Spends Time with Me 3.7
Follows Up After Visit 4.0

Specialties & Research

Dr. Clark Tsai, MD is board certified in Ophthalmology.

  • He has special expertise in 1 area:
  • Glaucoma

Education & Awards

Dr. Tsai graduated from Yeshiva University, Bronx.


Dr. Tsai has 11 hospital affiliations:

  • John Muir Medical Center, Concord Campus 
  • El Camino Hospital 


  • Cantonese
  • English
  • Spanish
  • Chinese
  • Mandarin

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Additional Information
Dr. Clark S Tsai MD is a male Ophthalmologist, has 24 years of experience and practices in Ophthalmology.
Where does Dr. Clark S. Tsai practice?
Dr. Clark Tsai has 1 office location.
Dr. Clark Tsai practices Ophthalmology near Concord, CA.
See Concord Ophthalmologists.