Browse Health
Internist, Gastroenterologist (digestive)
44 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).

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Specialties & Research

Dr. Fernando Ona, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 6 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Gastroscopy
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Ona graduated from University Of Santo Tomas, Manila. He has 1 awards.

One of America's Leading Experts on:


Dr. Ona has 3 hospital affiliations:

  • Queens Medical Center 
  • St Francis Medical Center - Honolulu 
  • Hawaii Medical Center East 

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Additional Information
Dr. Fernando Villalobos Ona MD is a male Internist, has 44 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Fernando V. Ona practice?
Dr. Fernando Ona has 1 office location.
Dr. Fernando Ona practices Internal Medicine and Gastroenterology near Honolulu, HI.
See Honolulu Internists and Honolulu Gastroenterologists.