Ernesto Ong MD | Pediatrician | Hacienda Heights, CA | PIH Health
Ernesto G. Ong

Ernesto G. Ong MD


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4.7 / 5 (based on 276 Reviews) View 28 Comments

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Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians





  • Pediatrics

Additional Languages

  • Spanish


Medical School

Emilio Aguinaldo College


St Josephs Hospital and Medical Center - Paterson, NJ


St Josephs Hospital and Medical Center - Paterson, NJ


University of Maryland School of Medicine (Baltimore)

Board Certifications

  • Pediatrics


Patient Reviews

April 15, 2022
We really trust the doctor and so do my children, they want to continue to see Dr. Ong until the age they can't see a pediatrician anymore. Thank you, Dr. Ong.
March 31, 2022
Love going to visit Dr. Ong and his staff is very nice and respectful!
March 31, 2022
Very good service!
March 23, 2022
My children love Dr. Ong
March 15, 2022
Dr. Ong has been my son's doctor since he was born and has always provided great care.
March 09, 2022
Always quick and to the point. Staff is always nice and respectful!
February 16, 2022
Thank you, Dr. Ong!
February 07, 2022
February 02, 2022
Dr. Ernesto Ong is the best pediatrician in town. He is knowledgeable, caring, and understands my children's health issues. His dedication to his patients are well appreciated.
January 19, 2022
I've had Dr. Ong as a pediatrician for both my sons. The oldest is now 24. I couldn't imagine anyone else as their pediatrician. He is so kind and caring. His bedside manner is unmatched. Thank you Dr Ong!
January 17, 2022
Dr is great! The Nurse or medical assistant that took care my kid (only) is not that great in customer service. The front desk is awesome.
January 10, 2022
Very good, very good people, the receptionists, the staff, the doctor very attentive and always concerned about my patient, my daughter [PHI removed], a very good clinic and a very good office there.
December 15, 2021
Dr. Ong's office is the best I've ever encountered. They are gracious and nice helpful, Dr. Ong spends sufficient amount of time with my child and it makes me feel warm and welcomed at all times.
November 30, 2021
I've been taking my twin boys there since they were born and I love Dr. Ong and the staff are awesome, they are great, and it's all I have to say, thanks bye.
November 30, 2021
Always the best. Favorite people ever!
November 29, 2021
I think Dr. Ong is a wonderful doctor, very easy to understand is is wonderful, to kids. I really, really speaks very highly about him because my experience with this doctor is every time is wonderful. Thank you.
November 24, 2021
Dr. Ong and his staff are absolutely amazing.
November 18, 2021
Dr. Ong It's a very well spoken and honest doctor in my point of view. He goes straightforward tell us whether it's recommend or not recommend it, and he does not waste time on treatment when the child needs medication right away to prevent able to stop from getting worse. I do recommend is Dr. Ong recommended taking so many family members and also to my grand child with my granddaughter to receive my care give him most a 10. Thank you.
November 17, 2021
Dr. Ong is a great pediatrician. I would recommend anyone looking for a pediatrician for their child.
November 15, 2021
Dr. Ong is awesome he always treats my kids with love and respect.
November 12, 2021
Great experience. Never any issues great staff always kind.
November 11, 2021
Dr. Ong listens and cares about his patients. He does a great job following their health history and has a way to speak to my son to help him understand what he'll need to do and why etc...
October 29, 2021
We've been lucky to have dr Ong as our children's Pediatrician for over 25yrs. My 3 children have been seen by dr Ong's office since they were new born. It will be a wish of mines to keep Dr Ong and his office forever for my children who are now 25,23 and 15yrs old. Luckily my 3rd child have 2more years with Dr.Ong. I will definitely refer my grandchildren to him if possible. Dr Ong, his assistant and office staff are highly regarded and respected by me. I am truly grateful and appreciative.
October 25, 2021
Excellent service
October 14, 2021
Dr. Ong and his staff are always above and beyond. I love that the staff remember all three of my kids and I would travel 20 miles to see Dr. Ong and I would continue going to him because of his service.
October 11, 2021
Thank them Dr. Ong and entire staff for such care.
October 07, 2021
We love Dr Ong and the staff
October 07, 2021
We love Dr. Ong and we have referred him to our friends and family for him as a personal physician. Thank you.
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