EverydayHealthLogo
FO

Dr. Fernando Ona, MD

Honolulu, HI

52 Years of Experience

Accepting patients

    Who is Dr. Ona, Gastroenterologist in Honolulu, HI?

    Dr. Fernando Ona, MD is a Gastroenterologist, who primarily practices in Honolulu, HI with 1 additional practice location. He has been practicing for over 52 years and is board certified by the American Board of Internal Medicine. Dr. Ona completed his residency at New England Med Ctr Hosps, Internal Medicine Boston City Hosp, Gastroenterology Vet Affairs Med Ctr, Internal Medicine Raritan Bay Med Ctr, Flexible Or Transitional Year. Dr. Ona is fluent in English, Filipino, Pilipino, and Tagalog, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Ona’s office at (808) 433-0080.

    Where did Dr. Ona go to medical school and complete their residency?

    • Residency: New England Med Ctr Hosps, Internal Medicine Boston City Hosp, Gastroenterology Vet Affairs Med Ctr, Internal Medicine Raritan Bay Med Ctr, Flexible Or Transitional Year | Boston Medical Center

    Is Dr. Ona board certified in Gastroenterologist?

    Yes, Dr. Fernando Ona, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Ona speak?

    Dr. Ona and their clinical team can communicate with patients in the following languages:

    • English

    • Filipino

    • Pilipino

    • Tagalog

    What conditions does Dr. Ona treat?

    As a Gastroenterologist, Dr. Ona diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Ona. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Acid Reflux
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis

    Also known as:

    • Upper Middle Abdominal Pain
    • Abdominal Pain
    • Epigastric pain
    • Pain below breastbone
    • Upper stomach pain

    ICD-10 Codes:

    • R1013: Epigastric pain

    Also known as:

    • Colon Cancer Screening
    • Health Screening
    • Colorectal Cancer Screening (PDQ®)
    • Screening Tests to Detect Colorectal Cancer and Polyps
    • Tests to Detect Colorectal Cancer and Polyps
    • Colorectal Cancer Screening
    • Colonoscopy Screening
    • Bowel Cancer Screening

    ICD-10 Codes:

    • Z1211: Encounter for screening for malignant neoplasm of colon

    Does Dr. Ona accept my insurance?

    Please contact Dr. Ona's office to confirm accepted insurance plans.

    Where is Dr. Ona's office located?

    Dr. Fernando Ona's Primary Practice

    459 Patterson Rd

    Honolulu, HI 96819

    (808) 433-0080

    Get Directions

    Dr. Fernando Ona's Practice 2

    590 Farrington Hwy Unit 526A

    Kapolei, HI 96707

    (808) 762-2311

    Get Directions

    What is Dr. Ona's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Ona's National Provider Identifier (NPI) number is 1811934748.

    What common questions do patients ask about Dr. Ona?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ona

    What is Dr. Fernando Ona's specialty?

    Dr. Ona is a Gastroenterologist near Honolulu, HI. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Ona to book an appointment today.

    Is this Dr. Fernando Ona affiliated with a ranked Castle Connolly Top Hospital?

    No, Ona is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Gastroenterologist?

    Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Fernando Ona accepting new patients in Honolulu, HI?

    Yes, Dr. Fernando Ona is accepting new patients at this time.

    Does Dr. Fernando Ona offer online booking?

    Please contact Dr. Ona's office at (808) 433-0080 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Fernando Ona?

    Please contact Dr. Ona's office at (808) 433-0080 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Fernando Ona have?

    Dr. Fernando Ona is certified by the American Board of Internal Medicine.

    Other Gastroenterologist Near Honolulu, HI

    TP

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Honolulu, HI
    DH

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Honolulu, HI
    AJ

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Honolulu, HI
    See All Specialists

    Doctors by Category

    Specialists