Ernesto G. Ong

Ernesto G. Ong MD

Specialties:

Pediatrics
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4.7 / 5 (based on 113 Reviews) View 26 Comments

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626.964.6012

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Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Pediatrics

Additional Languages

  • Spanish

Education

Medical School

Emilio Aguinaldo College

Internship

St Josephs Hospital and Medical Center - Paterson, NJ

Residency

St Josephs Hospital and Medical Center - Paterson, NJ

Fellowship

University of Maryland School of Medicine (Baltimore)

Board Certifications

  • Pediatrics

Video

Patient Reviews

April 01, 2026
Thank you to Dr ONG, and his staff. They were very friendly and professional and even though their system wasn't working they made our first visit very good. We had been looking for a good Dr for a few months now and the boys really liked Dr ONG. Also their office is very clean!
April 01, 2026
Dr. Ong always goes above and beyond. We feel heard and understood always!
April 01, 2026
Dr. Ong has been my son's pediatrician for several years, and I truly can't imagine what we would do without him. He is an exceptional doctor-kind, attentive, and incredibly knowledgeable. We are so grateful for the care and dedication he has shown our family. We appreciate everything about him.
March 16, 2026
He's a great doctor. He followed up. My son is doing well. He's very thorough and I love it. Dr. Ong is the best. Thank you.
March 13, 2026
Dr. Ong and his staff are great providers. They've always taken care of on since the birth. I appreciate them very much and thank you.
March 11, 2026
Dr Ong was great
February 12, 2026
Everybody's super friendly, but your automated system to talk to someone inside the office is a nightmare. I can't get to somebody in the office. I can't get an extension to call back directly, and I hate that. It is the only complaint I have about you guys. You need to be able to give the receptionist or the nurses an extension where I can call them back directly without having to go through the automated system and having to explain my problem to strangers every time because nobody's available.
February 12, 2026
Dr. Ong is caring and knowledgeable. He makes for a great pediatrician.
November 05, 2025
There was a language barrier since the receptionist as well as with the nurse and the doctor. I felt I did not fully understand what they were telling me.
October 29, 2025
Dr Ong and his staff are always respectful ,amazing and kind and I always recommend Dr Ong to my friends and family!
September 16, 2025
The Doctor was friendly and informative.
September 15, 2025
Dr Ong is exceptional always listens to my concerns and fits me in when the kids get sick.
September 09, 2025
Doctor Ong and all office Ladie very good, we like it
August 11, 2025
Always a great experience with Dr Ong and staff
August 11, 2025
Suggestion: The staff member who handled my phone booking seemed unprofessional and very slow-the call took nearly 20 minutes. She also could not explain why my child's annual physical cannot be scheduled shortly after his 7/15 birthday. She was told that because last year's physical check was in August, this year it must be on/after 8/11, and next year would have to be even later than that. Please clarify this policy and allow scheduling any time after the birthday if possible.
July 09, 2025
The staff members were incredibly rude. Retaliate against us when I disagree with their treatment of us. After being to this office for over 19 years, this office's services, quality of both staff members and physicians have declined significantly. The doctor was insensitive to the teenager and gave responses before a question was completed. Answer was illogical and insensitive. We will be changing doctor office after this experience after close to 20 years.
June 30, 2025
Lobby secretary and Doctor was great, kind, helpful and respectable. Nurse was not very friendly and was put off a sour mood.
June 19, 2025
This office is always organized and on time. The nurses are nice and always greet you with a smile. Dr Ong is a great doctor and always listens to our concerns.
June 17, 2025
The whole staff is incredibly nice and helpful and Dr. Ong well he is just amazing, you can tell he loves his job. Thank you Dr. Ong!
June 17, 2025
Excellent!!!
June 12, 2025
This Office is Great! Staff are Amazing! Friendly and Happy! Love to go to this Office.
June 05, 2025
Great staff and friendly physician.
May 29, 2025
Dr. Ong has been by far the most consistent and best Pediatrician we've encountered and both of my children have remained under his care through the years. He's thorough in his examinations and very attentive to any concerns we have.
May 28, 2025
The very first nurse (I believe she is new?) who asked questions about vital was not too friendly especially considering it's a pediatric Drs office
May 05, 2025
The doctor's office, the doctor and everybody working there was amazing. They are great. However, this survey is longer than it should be.
May 05, 2025
It was great, smooth and fast
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