Browse Health
Gastroenterologist (digestive)
28 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).

Learn more about Dr. Roy Matsuyama:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Roy Matsuyama is Average. Dr. Matsuyama has been reviewed by 14 patients who have provided 4 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 2.1
Promptness 2.9
Courteous Staff 2.5
Accurate Diagnosis 2.3
Bedside Manner 2.8
Spends Time with Me 2.8
Follows Up After Visit 2.3

Specialties & Research

Dr. Roy Matsuyama, MD is board certified in Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Matsuyama graduated from University of Hawaii, Honolulu.


Dr. Matsuyama has 6 hospital affiliations:

  • Mercy San Juan Medical Center 
  • Sutter Roseville Medical Center 


  • Japanese
  • Spanish
  • English

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Additional Information
Dr. Roy Matsuyama MD is a male Internist, has 28 years of experience and practices in Gastroenterology.
Where does Dr. Roy Matsuyama practice?
Dr. Roy Matsuyama has 1 office location.
Dr. Roy Matsuyama practices Gastroenterology near Roseville, CA.
See Roseville Gastroenterologists.