Browse Health
Internist, Gastroenterologist (digestive)
21 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. Edward Onuma:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Edward Onuma is Excellent. Dr. Onuma has been reviewed by 2 patients who have provided 0 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. Edward Onuma, MD, PHD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 8 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Cataract
  • Constipation
  • Diabetes
  • Glaucoma
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Onuma graduated from Upstate Medical University Physical Medicine and Rehabilitation, Syracuse.


Dr. Onuma has 7 hospital affiliations:

  • Mills-Peninsula Health Services 
  • Sequoia Hospital 


  • English
  • Japanese

> > > > Dr. Edward Onuma, MD, PHD

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Additional Information
Dr. Edward K Onuma MD and PHD is a male Internist, has 21 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Edward K. Onuma practice?
Dr. Edward Onuma has 1 office location.
Dr. Edward Onuma practices Internal Medicine and Gastroenterology near San Mateo, CA.
See San Mateo Internists and San Mateo Gastroenterologists.