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Dr. Fernando Ona, MD
Gastroenterology* Age 82
Dr. Fernando Ona, MD
Dr. Fernando Ona, MD is a Gastroenterologist in Honolulu, HI.
Dr. Fernando Ona, MD

Dr. Fernando Ona, MD

Gastroenterology* Age 82
Honolulu, HI
Accepting new patients
59 years of experience
Dr. Fernando Ona, MD is a Gastroenterologist in Honolulu, HI.
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About Dr. Fernando Ona, MD

Dr. Ona graduated from University of Santo Tomas in 1967 and completed a residency at New England Medical Center Hosps. Dr. Fernando Ona, MD is a Gastroenterologist in Honolulu, HI and has 59 years experience. Dr. Ona's office accepts new patients. Dr. Ona is board certified in Gastroenterology and Internal Medicine.

Experience Check

Enter a condition or procedure
Manometry
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Manometry
Flexible Sigmoidoscopy
Rigid Proctosigmoidoscopy
Abdominal Pain
Cirrhosis
Constipation
Gastroesophageal Reflux Disease (GERD)
Alcoholic Cirrhosis
Anal or Rectal Pain
Anemia
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Ascites
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Barrett's Esophagus
Benign Neoplasm of the Digestive System
Colorectal Polyp
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Diarrhea
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Duodenitis
Dysphagia
Eosinophilic Esophagitis
Esophageal Motility Disorders
Esophageal Ulcer
Esophagitis
Familial Adenomatous Polyposis
Gallstones
Gas-Bloat Syndrome
Gastritis
Gastrointestinal Bleeding
Gastroparesis
Gastroptosis
Heartburn
Hemorrhoids
Hepatitis B
Hepatitis C
Hiatal Hernia
Indigestion
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Intestinal Ulcer
Irritable Bowel Syndrome
Liver Damage from Alcohol
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Nausea
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Neoplasm of Gastrointestinal Tract
Noninfectious Gastroenteritis and Colitis
Peptic Ulcer
Reflux Esophagitis
Retroperitoneum Cancer
Ulcerative Colitis
Unexplained Weight Loss
Vomiting Disorders
Colon Cancer Screening
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Colorectal Cancer Screening
Duodenal Polypectomy
Endoscopy
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Choice Plus POS II
    Open Choice PPO
  • Open Access Plus
    Cigna PPO
  • Navigate Plus POS
    Choice Plus POS
    Options PPO

Where Dr. Fernando Ona, MD Sees Patients

  1. 1 Office
    1712 Liliha St, Honolulu, HI 96817
  2. 2 Honolulu VAMC
    459 Patterson Rd, Honolulu, HI 96819

What Patients Say

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Meet Dr. Fernando Ona, MD

Specialties*
Internal Medicine
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
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FAQs About Dr. Ona's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Fernando Ona, MD. To arrange an appointment, call the number on Dr. Ona's profile.

Dr. Fernando Ona, MD is affiliated with Straub Clinic and Hospital, The Queens Medical Center and Pali Momi Medical Center.

Yes, Dr. Fernando Ona, MD holds board certification in Gastroenterology and Internal Medicine.

Training & Medical Education
Medical Education
  • University of Santo Tomas
    1967
Medical Education
Board Certifications
  • Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Residency Hospital
  • New England Medical Center Hosps
Residency Hospital

Hospitals Where Dr. Fernando Ona, MD Practices

  • Straub Clinic and Hospital

    888 S King St, Honolulu, HI

  • The Queens Medical Center

    1301 Punchbowl St, Honolulu, HI

  • Pali Momi Medical Center

    98-1079 Moanalua Rd, Aiea, HI

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