Sy Oang - PIH Health - Whittier, CA

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Sy H. Oang

Sy H. Oang, DO

4.9 / 5 (based on 285 Reviews) View 87 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

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.
July 18, 2017
DR. Oang is an all around outstanding physician.
July 18, 2017
Very thorough, takes time to listen and explain procedures, lab results, history, procedures. Friendly and personable. Exceptional in every way. 15 years with Dr. Oang. Terrific
July 17, 2017
Dr Oang is amazing, so brilliant & helpful and good. He really cares about our health and feels like family . We recommend him to anyone that asks for a good dr. He and his entire staff are the greatest!!! Thank you.
June 23, 2017
First time there. Very pleasant. Didn't wait long to get called in. Dr. Oang was very kind. Listened to what I had to say. He was very thorough on what was needed for me and orders and referals were placed promptly. I was impressed. I will definitely keep him as my primary doctor. No more looking. ????
June 22, 2017
Dr Oang is such a great doctor. He has such knowledge & always helps me to get healthy & do what it takes to improve my health. I really feel encouraged by his excellent skills and kind spirit. I have often referred him to others when they are looking for a great doctor.
June 14, 2017
Dr. Lang is a caring and knowledgeable doctor, I feel comfortable and feel that I am in good hands, being cared for by a proactive doctor.
June 13, 2017
He is very friendly. My wife and I are happy that we have him as our provider. Thanks.
June 13, 2017
Dr. Oang is an excellent knowledgeable & kind. Really helps in caring for my health!! I recommend him to others because he & his staff is fantastic. I am blessed to have such a great doctor & team!!!
June 12, 2017
June 09, 2017
The doctor was very good, thorough, and kind.
June 06, 2017
Thank you Dr. Sy Oang for taking your time and care of my health. My friends that goes to you are also very grateful to have you as our phyician.
June 06, 2017
He is s very attentive, personable doctor. We have been going to him for over 20 years and have recommended him to our entire family & our employees. He is the best!!
June 06, 2017
Caring, attentive, polite, knowledgeable, kind,gentle, patient & very professional
June 05, 2017
I saw Dr. Oang for the first time last year when I couldn't see my regular PCP. Dr. Oang saved my life. He immediately diagnosed my condition,sent me to ER, and I underwent surgery. I have since chosen him as my PCP.
June 01, 2017
I have been seeing Dr Oang for over 15 years, his an excellent doctor, very concerning about his patients.
May 30, 2017
PIH has improved since I left this IPA 10 years ago. They are more efficient and proactive with their approach with health care. The check in was easy, parking good, very clean and modern building Dr. Oang is kind, knowledgeable and listens. He is easy to connect with and is willing to spend time (within reason of course) with a new patient (me) to establish a patient-doctor relationship that is so important. I'm very pleased so far! I have already shared my opinion with my husband, who is considering a change for his PCP and IPA.
May 24, 2017
He seems very thorough and has a bright personality and good bedside manner.
May 23, 2017
Doctor is well prepared for the visit and answers questions in detail and confirms everything is understood.
May 23, 2017
Dr. Oang took the time to explain my condition after the EKG indicated that I had the afib condition and explained the next steps with the cardiologist. He was patient and willing to answer my questions.
May 22, 2017
good doctor,have alot patience
May 17, 2017
Always listens!
May 16, 2017
Dr Oang has always been a good listener & provider of my medical care.
May 16, 2017
It was my first visit and I was impressed with the woman who helped me get registered. She was personable and patient. I immediately felt at ease with Dr. Oang and the advice he offered made good sense. I appreciated the clear and concise way he presented it. I left feeling valued and eager to try his recommendations.
May 15, 2017
Dr. Oang has to rank as one of the top physicians that I have ever had. He is very professional, he listens, and he does a great job of explaining everything! His nurses are also top quality!
May 10, 2017
Proffesional and friendly
May 10, 2017
Dr. Oang is very well informed and I feel he researches medications as well as treatments and side effects. He knows my history and carefully decides what option/path is best for me as well as explains why he chooses one medication over another. I am very happy with the excellent service he provides.
May 08, 2017
Dr Oang took all the time needed to answer my questions. He showed concern and was very through.
May 08, 2017
Their nurse and doctor were informative, friendly, quick and did a lot in a short amount of time. They value what you came in for and go the extra mile for any other concerns.
May 04, 2017
I am pleased with this service
May 03, 2017
I appreciate all the dedication and time Dr. Oang has spent with me.
May 03, 2017
I really don't want him to have more patients. He's busy enough. I would like to be able to get appointments in less time.
May 01, 2017
May 01, 2017
You may share my comments.
April 27, 2017
Excellent dr. Usually takes a long time to get an see him. If you need to see a dr sooner then you see someone else.
April 24, 2017
We chose Dr. Sy Oang after our regular doctor retired! We have had him for a very long time! He has taken exceptional care of my husband and me. Because of his excellent care and diagnosis of life threatening health issues, we might not have the quality of life we have now!
April 24, 2017
Great Doctor. Really cares and spends time with his patients.
April 18, 2017
Doctor Oang is very congenial, has an expanded knowledge of medicine. Will take all the time necessary to explain a problem or procedure.
April 14, 2017
Dr. Oang and staff are amazing!
April 12, 2017
Dr Oang takes time to listen. He truly cares about his patients. His staff is always kind,
April 10, 2017
Dr. Sy Oang is the most compassionate, smart, caring doctor I know. I look forward to all my appointments. He's the best!
April 07, 2017
Dr. Oang has always been a great doctor for me.
April 06, 2017
He is a great doctor
April 03, 2017
Dr. Oang is a great doctor he saved my life found cancer at very early stage.
March 30, 2017
My husband and I have been going to Dr. Oang for about 20 years. The only way I wood change doctors, is if he was to go somewhere else or I were to move. He is an excellent doctor.
March 14, 2017
Love the Dr here!!
March 13, 2017
He's great.
March 06, 2017
Smart knowledgeable intuitive.
February 06, 2017
the doctor was very thorough and thoughtful.
January 30, 2017
Excellent Doctor in every respect!
January 27, 2017
First encounter with our physician away. Went extremely well.
January 25, 2017
Lovely, professional & friendly doctor! He made sure all of my questions were answered
January 25, 2017
Thant you for taking your time
January 18, 2017
I found this provider has good services. I feel confident with PIH
January 16, 2017
I love you Dr Oang! Your the best!Thank you to the front office and back office for the attention.
January 04, 2017
Dr Oang is truly a very caring person regarding my health needs, he always takes time explaining his finding regarding my health issue's.i have refer Dr Oang to many of my family members and friends.
December 30, 2016
Dt Oang is always friendly, professional and thorough.
December 27, 2016
This is my first visit with Dr. Oang-- I would need several more visits before I could give an honest opinion
December 24, 2016
This doctor was very knowledgeable about the issue I was having, so I left feeling informed and less stressed.
December 20, 2016
This provider is attentive, supportive, communicative and very kind.
December 07, 2016
He seemed to be a good doctor and he explained and communicated his answers effectively.
November 30, 2016
He's the most caring and helpful doctor ever. Would definitely recommend him to all my family and friends.
November 28, 2016
Love oang
November 21, 2016
Excellent physician. Good listener. Very thorough. Doesn't rush you.
November 17, 2016
It hard at times to see dr. Oang. My husband daughter and son n law like him but it's so hard to see hom'
November 15, 2016
Other members of my family have the same positive attitudes toward his are. We feel very fortunate to have him as our primary caregiver.
November 15, 2016
Great job
November 14, 2016
Very attentive to my needs
November 14, 2016
Very concern doctor
November 11, 2016
Dr. Oang is such a great doctor, caring and listens and doesn't ever make me feel like I'm just a number.
November 11, 2016
Dr. Oang takes the time to listen. He answers all my questions. I never feel rushed, but that he really cares about me and resolving my issues.
November 04, 2016
I did have to wait 3 weeks to see Dr. Oang, but he's worth the wait!
October 28, 2016
Dr Oang is a great doctor. He takes the time to listen and explain any info that he is explaining. I recommend dr oang to all my family and friends and let them know how happy my family is to have him as our family physician.
October 14, 2016
Dr Oang is by far the best Doctor I have had in the last 25 years
October 12, 2016
October 06, 2016
Doctor was good, provider still to be decided because it was my first time in the hospital .I have not received anything yet, from the hospital and provider.
October 06, 2016
Doctor Sy Oang is very professional and very helpful. will not leave until you are satisfied with your visit. Provides the best medical service and advice.