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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).

Patient Reviews

Patient comments (20)

The overall average patient rating of Dr. Roger Kao, Gastroenterologist and Hepatologist is Excellent. Dr. Kao has been reviewed by 23 patients who have provided 20 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Roger Kao, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 3 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Kao graduated from Rosalind Franklin University, North Chicago. He has 4 awards.

Patients' Choice Award (2010 - 2013)
Compassionate Doctor Recognition (2011 - 2013)
Top 10 Doctor - State (2014)
Top 10 Doctor - City (2014)
Chicago, IL


Dr. Kao has 4 hospital affiliations:

  • Stanford Hospital and Clinics 
  • Sequoia Hospital 


  • Chinese
  • Mandarin
  • Italian
  • Spanish

> > > > Dr. Roger Kao, MD

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Additional Information
Dr. Roger Min Kao MD is a male Internist, has 11 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Roger M. Kao practice?
Dr. Roger Kao has 2 office locations.
Dr. Roger Kao practices Internal Medicine and Gastroenterology near San Carlos, CA.
Additional practice locations include: Redwood City, CA.
See San Carlos Internists and San Carlos Gastroenterologists.