Sy Oang - PIH Health - Whittier, CA

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Sy H. Oang

Sy H. Oang, DO

4.8 / 5 (based on 294 Reviews) View 106 Comments

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Dr. Oang knew he wanted to pursue medicine growing up in his native Cambodia. “I was sick a lot during grade school, even missing vacations with my family. So, I decided to be a physician to take care of myself,” he says, adding that “Internal medicine offers a broad base of knowledge, which enables me to take care of patients with all different medical problems.”

Dr. Oang survived Cambodia’s brutal dictator Pol Pot and the Khmer Rouge regime, responsible for killing more than a million people in the 1970s. Today he likes to vacation with his family.


15725 E Whittier Blvd #500
Whittier, California 90603
  • Main: 562.947.3307
  • Fax: 562.943.1090

Hospital/Group Affiliation

PIH Health Physicians

PIH Health Hospital - Whittier





  • Internal Medicine


  • Cambodian



Michigan State University-Sparrow Hospital (Lansing)


Michigan State University College of Osteopathic Medicine (East Lansing)


Internal Medicine (General Cert)


Patient Reviews

July 13, 2018
Dr. Oang is a excellent Doctor and has taken good care of me!
July 12, 2018
Go find the best and it is Dr Oang
July 11, 2018
Dr. Oang is a great doctor
July 09, 2018
That my Dr takes is time with every patient and if yo dont understand all you need to do is let him know and he will explan it in a different way then ask if you understand. Before he moves on to another question
July 09, 2018
Primary Dr is very good Dr & Care more Ins is good for us.
June 28, 2018
He shows genuine interest in performing his duties I a caring and compassionate way. I feel quite at ease being in his care.
June 28, 2018
He is knowledgeable, caring and truly does everything he can for his patients.
June 26, 2018
So happy he is our family doctor, he is the Best & we recommend him to our friends & Family!!!
June 25, 2018
excellent facility.
June 14, 2018
Dr. Oang is outstanding! He goes above and beyond to provide the best care for his patients.
June 11, 2018
Dr. Oang was very thorough and patient. I would love for the rest of my family to see him.
June 05, 2018
Great doctor.
June 04, 2018
Dr. Oang has been taking excellent care of us for many years! We think he is and outstanding doctor and person!
May 29, 2018
Dr Oang is fabulous. He is caring and understanding. I have several friends that have Dr. Oang as their physician and we all agree he's great.
May 24, 2018
Dr Oang is awesome. He is the best primary care doctor I’ve had in a while. I trust his medical knowledge and he has always provided excellent care
May 22, 2018
Great provider.
May 21, 2018
He is a GEM!!! Spends time w me and listens to all my concerns.
May 16, 2018
I have already told my family that Dr. Oang is a great doctor. I have recommended him to my friends, as well.
May 11, 2018
He calmed my fear, immediately when he walked in the door hehad a smile on his face, that made me smile too. His tone of voice, his words rest assured me there was nothing wrong afterall & said he could understand my concerns & was glad I made an immediate appointment. Dr. Sy was wonderful!
May 10, 2018
May 07, 2018
He is a very good doctor; he listens and informs and I wish to keep him as my primary doctor for as long as possible.
May 04, 2018
He’s great! I just wish it wouldn’t take so long to get an appointment.
May 02, 2018
He is an excellent dr. Always very busy
May 01, 2018
I recommend Dr Oang highly!
April 30, 2018
This Doctor is competent, aggressive with treatment and genuinely cares about his patients.
April 27, 2018
PIH medical staff is top notch. Dr. Sy Oang is a caring and talented physician!
April 26, 2018
Yes, We already are recommending him to all the people we know that use PIH
April 24, 2018
Always listens to you and makes sure you get the care that you need. I hope he never retires.
April 17, 2018
He's a caring and thoughtful who seems knowledgable on a range of issues.
April 11, 2018
Dr Oang is a one of a kind doctor. All doctors should be more like him
April 09, 2018
He is the best.
April 09, 2018
He is a pleasant doctor and an interesting conversationalist. I enjoyed my first visit with him very much.
April 06, 2018
Dr. Oang listens and doesn't treat you like a text book patient.
April 05, 2018
He listens, relates to what you are saying and helps get to the issues.
April 05, 2018
If I have problems w/my health, he will send me to specialist on the spot.
March 30, 2018
Doctor was EXCELLENT, but his nurse was NOT.
March 30, 2018
Dr. Oang is awesome. He's always encouraging, fair, and tells it like it is!
March 21, 2018
Very friendly and knowledgeable
March 19, 2018
Dr Oang is one of a kind practitioner. He truly cares about his patients and takes the time to explain everything very thoroughly. More Dr’s should learn from his expertise. He always provides exemplary service. Happy to have him as our family practitioner.
March 05, 2018
Friendly, outgoing, relaxed, knowledgeable, easy to talk to, helpful.
March 05, 2018
Dr. Oang is incredible! I have been seeing him for 18 yrs and remain exceptionally satisfied. There is none better!
March 01, 2018
Dr Oang is a one of a kind Doctor. He is very professional and actively listens to what your concerns are. The treatment he provides are well thought out and on point. I would definitely recommend him to family and friends.
February 28, 2018
Dr Oang is the best dr i have ever been too! He is the reason i will be staying with PIH. I hope the other drs staffed can learn from him
February 26, 2018
Very good.
February 23, 2018
Very caring!
February 23, 2018
none at this time
February 16, 2018
Dr. Oang was very comfortable for me and dealt with me directly and clearly.
February 14, 2018
Would love to go back to see dr. Oang when I’m not feeling good not other drs!
January 15, 2018
Dr. Oang is great!
January 12, 2018
He's very friendly. Asks questions, approve achable and knowledgeable.
January 09, 2018
Dr. Oang is amazing! I recommend him to anyone who is looking for a new doctor. He is so caring and knowledgeable, he is fantastic!
January 08, 2018
Best doctor ever
January 03, 2018
Dr. Sy Oang is knowledgeable, very helpful, encourages me to take better care of myself. He recalls talks that we have had on previous visits. He cares.
January 03, 2018
very good Doctor I have been going to doctor Oang for years
December 19, 2017
Dr. Oang always takes time to listen and very knowledgeable.
December 18, 2017
I would tell them to switch to PIH as long as they are fortunate enough to have Dr. Sy Oang as their PCP.
December 15, 2017
All good. Friendly, thorough.
December 14, 2017
dr. oang was thoroughly prepared and knew all of my health records before he saw me. i really appreciated that, so i would not need to explain. he asked appropriate questions and helped i and my husband make informed decisions. he was caring, compassionate and listened intently. i truly appreciated his care and concern and professionalism!!
December 12, 2017
This provider shows honest an consideration at all times concerning my health issues.I feel lucky to have this provider dealing with my health and health history.
December 12, 2017
Very attentive, caring, and very professional.
December 07, 2017
This provider is excellent in the knowledge of giving care to his patients. You would be very fortunate to have this person on your side.
November 27, 2017
He is friendly and attentive. He wants to treat the overall patient. I will feel comfortable seeing him again.
November 20, 2017
November 13, 2017
From my first visit to Dr Oang to present I feel comfortable speaking to him about my health. he thoroughly answers questions and actually show me results of my tests. I love the fact that he knows exactly what to do for me. I respect his professionalism but he also easy to talk to and laugh with. He has the best laugh, in all my years going to PIH Dr's He the best I have ever had there. I am so glad my husband recommened him. I have recommended him to my neighbors and they go to him
November 03, 2017
I feel very safe and confident with DR. Oang. Good doctor
October 31, 2017
He is very helpful and understanding.
October 31, 2017
His ability to listen and make you feel comfortable and important. He is very thorough and follows up
October 31, 2017
This was my first visit with Dr. Oang. I was immensely pleased with his warm, assuring, kind manner. He was knowledgeable and informed. I'm happy to be his patient.
October 31, 2017
Thorough and professional First time seen by him, very pleased with my appointment.
October 30, 2017
If you need an excellent Internest, please go see Dr. Sy Oang.
October 27, 2017
Both me and wife are his patents now.
October 25, 2017
Very nice Doctor and spot on with diagnosis and remedy prescription.
October 19, 2017
Dr Oang was thorough about reviewing blood work and peripheral issues rather than a perfunctory preop checkup. Very pleasantly surprised.
October 13, 2017
Very personable, easy to talk to, very thorough, explained health questions well. Will refer me to other physicians needed for better health evaluations.
October 11, 2017
PIH has a team that goes above and beyond to give you peace of mind, support, and comfort! Thanks again!
October 10, 2017
He was very thorough.
October 10, 2017
I highly recommend Dr Oang. He is a wonderful Doctor, he is compassionate, has a great wealth of knowledge and shows concern for his patients.
October 05, 2017
Great Dr........caring and complete
October 04, 2017
Appreciate my doctor taking time to listen giving me the authorizations I needed.
October 03, 2017
the office staff and doctors are professional and caring.
September 29, 2017
This facility is a good place
September 25, 2017
September 25, 2017
PIH Health Care is wonderful
September 25, 2017
Dr. Sy Oang is the best! He's very caring and concerned about my health. I just had my husband switch over to Dr. Oang from his long time physician who was dropping the ball. Dr. Oang is a wonderful doctor who is professional, intelligent, respectful and kind. So grateful that I found him! Thank you to all of the kind staff on the 5th floor. You make my visits enjoyable.
September 22, 2017
September 20, 2017
Love Dr Oang. He's the best
September 19, 2017
The best doctor always listens to you and I feel really cares about me and my concerns!
September 13, 2017
Very personable I liked that he was really listening to me didn't make me feel rushed and he didn't just stand there and stare at his computer like many doctors in the past have done. He made you feel as though your concerns were his as well and also wanted to add assurance to you that he was there to help.
September 12, 2017
Best doctor I can trust.
September 11, 2017
He is a good doctor.
September 08, 2017
Dr Oang is a good caring very considerate now and has always been ! Best dr to provide care and service
September 06, 2017
Doctor is good but staff is not efficient.
September 06, 2017
I am extremely happy with the services provided by PIH, the Doctors and staff. They all have a great attitude and show compassion toward their patients.
September 05, 2017
Dr. Oang is a great doctor and he make me feel like I'm not just another patient. He explains to me my concerns and medical issues I have for my visits eveytime. He is a wonderful doctor
August 29, 2017
works to hard
August 29, 2017
Dr Sy Oang is very professional, respectful, knowledgeable and caring!He is an excellent example of a GREAT DOCTOR!!!! As a patient I would highly recommend him and I would say he's always right on when treating any illness I have!! Please thank him on my behalf and let his superiors know Dr Oang is a great asset to PIH!!!!
August 28, 2017
that I was really disappointed in the way the system overloads dr. Oang. People need to have their health problems resolved and that is through communication. I would recommend Sy Oang wholeheartedly but not the PIH system. Now I don't trust the system.
August 25, 2017
Very helpful & personable phyician.
August 25, 2017
Feel like "real family doctors and stuff".
August 23, 2017
Dr Oang is always pleasant, thourough, and very competent. Dr Oang is a good diagnostician and I always get well sooner than later. Dr Oang will refer you to a specialist when your medical issues indicate it is necessary. He always makes sure you understand what your medical issues are and why he is prescribing the meds he is. He takes time to explain your lab results to you and will always answer your questions completely. My health has continued to get better and better this past year I owe this to Dr Oang's constant encouragement to be in the best health I can be and what steps to take to make it happen. Happy, satisfied patient !! Thank you PIH for hiring the Best of the Best!
August 23, 2017
He is a Great Doctor !!!!
August 22, 2017
Dr. Oang is the best physician I have ever had. And I've been around for a long time and lived in several different parts of the country. I feel fortunate to have him looking after my well being.
August 22, 2017
Best doctor ever
August 17, 2017
Dr Oang
August 17, 2017
Just glad I'm under this health carrier.
August 14, 2017
Dr. Oang is so friendly and funny. I always feel taken care of when I see him. He's the best.