Dr. Oliver Ong, MD

Endocrinology, Diabetes & Metabolism*•Male•Age 53

Endocrinology, Diabetes & Metabolism*

Dr. Oliver Ong, MD is a diabetes & metabolism endocrinologist in Simi Valley, CA and has over 25 years of experience in the medical field. Dr. Ong has extensive experience in Thyroid Disorders and Osteoporosis & Screening. He graduated from George Washington University School of Medicine & Health Sciences in 1996. He is affiliated with medical facilities such as Adventist Health Glendale and Adventist Health Simi Valley. He is accepting new patients and telehealth appointments.

Dr. Oliver Ong, MD

Practice

2950 Sycamore Dr Ste 300 Simi Valley, CA 93065
Telehealth availableTelehealth services available
(805) 955-7060
Telehealth availableTelehealth services available
|

Accepting new patients

(805) 955-7060

Hospital Highlight

Dr. Ong is affiliated with Adventist Health Glendale Glendale, a highly rated and top awarded hospital for endocrinology, diabetes & metabolism.

At a Glance

  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    Critical Care Excellence Award™ • See hospitals
  • Good Patient Care
    Patients said they had exceptional care at this hospital. • See hospitals
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Dr. Ong's Reviews

Likelihood to recommend Dr. Ong

2.9

18 ratings, 6 with a written review
5 Star
39%
39%
4 Star
11%
11%
3 Star
0%
0%
2 Star
0%
0%
1 Star
50%
50%

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RecentHighestLowestMost Helpful
What went well
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
2 people found this helpful
Helpful
Anna Wiktor-Becker – Sep 13, 2023
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What went well
  • Appointment scheduling
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
4 people found this helpful
Helpful
Apr 18, 2023
×Post a ResponseAre you Dr. Oliver Ong, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
6 people found this helpful
Helpful
Osky in San Fernando, CA – Apr 05, 2017
×Post a ResponseAre you Dr. Oliver Ong, MD?
What went well
No results
What could be improved
No results
19 people found this helpful
Helpful
Dissapointed in North Hollywood, CA – Mar 07, 2017
×Post a ResponseAre you Dr. Oliver Ong, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
10 people found this helpful
Helpful
E. Aidinian in Glendale, CA – Jul 13, 2016
×Post a ResponseAre you Dr. Oliver Ong, MD?
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
13 people found this helpful
Helpful
Mrdfy in Glendale ca – Mar 25, 2016
×Post a ResponseAre you Dr. Oliver Ong, MD?

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Know Before You Go

About Me

care philosophy

Treat patients with respect and compassion in a professional environment.

  • Endocrinology, Diabetes & Metabolism

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Baylor College Of Medicine

    Residency Hospital

  • George Washington University School Of Medicine & Health Sciences

    Medical School, 1996
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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  • English

  • Arabic

Focus on Thyroid Eye Disease

Locations

Practice

Adventist Health Physicians Network - Sycamore Primary and Specialty Care2950 Sycamore Dr Ste 300 Simi Valley, CA 93065
1
  • Call
  • Fax
  • Hours
    • Mon: 7:00am - 7:00pm
    • Tue: 7:00am - 7:00pm
    • Wed: 7:00am - 7:00pm
    • Thu: 7:00am - 7:00pm
    • Fri: 7:00am - 7:00pm
    • Sat: closed
  • Directions

Adventist Health Physicians Network

Office544 North Ave Unit B Glendale, CA 91206
2

Affiliated Hospitals

  • Adventist Health Glendale

    1509 Wilson Ter
    Glendale, CA 91206
    Recipient of 18
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Critical Care Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback

  • USC Verdugo Hills Hospital

    1812 Verdugo Blvd
    Glendale, CA 91208
    Recipient of 2
    hospital awards

    How patients felt about the care they received at this hospital.

    81%
    Patients said they were given information about recovering at home

    3% lower than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback

  • Adventist Health Simi Valley

    2975 Sycamore Dr
    Simi Valley, CA 93065
    Recipient of 6
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    74%
    Patients said that nurses always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality