Sy H. Oang

Sy H. Oang DO

Specialties:

Internal Medicine
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4.9 / 5 (based on 345 Reviews) View 98 Comments

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562.947.3307

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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.

Office Information

Hospital/Group Affiliation

PIH Health Physicians

Profile

Gender

Male

Specialties

  • Internal Medicine

Additional Languages

  • Cambodian

Education

Medical School

Michigan State University College of Osteopathic Medicine (East Lansing)

Internship

Michigan State University-Sparrow Hospital (Lansing)

Residency

Michigan State University-Sparrow Hospital (Lansing)

Video

Patient Reviews

June 17, 2026
Dr. Sy Oang has been my primary care physician for years now. He's a very good doctor and a very kind person and he's my husband and my primary physician. And we both really, really respect him and really like him. He gives us good care. Thank you.
June 15, 2026
This provider took the time to listen to patient's concerns relating to individualized wellness and showed genuine care and made appropriate recommendations to address related concerns. It was a pleasant experience to see Dr. Sy Oang once again.
June 03, 2026
After over 20 years as my primary care provider Dr. Oang continues to provide me with the best care possible. He is a terrific doctor.
May 29, 2026
Dr Sy Oang is very professional, knowledgeable, polite, and friendly. I have been going to him for many years. He is very thorough and listens well. He also answers questions I have.
May 29, 2026
Dr. Oang is amazing. He cares about you and your overall health. He recommended stuff that I never even thought about. Great experience.
May 22, 2026
As always Dr Oang's services we impeccable. We are fortunate we have such a caring and personable doctor. He never ceases in amazing us with his care and understanding of our medical needs. And (name removed) his assistant goes without saying what a caring and professional young lady she is!
May 20, 2026
Dr. Oang is more than a physician to us. He is a friend. He has always been helpful, answered all of our questions with a sense of humor. He knows our bodies, he knows what's going on, and we completely trust him. The only sad thing is that I know he's going to be retiring soon, but we love Dr. Oang. He is the greatest doctor we've ever had, and we appreciate everything he does for us.
May 20, 2026
He is my doctor for 27 years. He is probably the best doctor PIH ever had.
May 15, 2026
Dr Oang is the best that I have received the best care of my life. I am proud to be one of his patients. I would not see no one but Dr Oang. (name removed) his RN has been his nurse for years. I can extremely depend on her experience and kindness at all times. Thank you
May 08, 2026
Excellent doctor.
May 08, 2026
Dr. OANG is an excellent doctor and I trust him completely.
May 06, 2026
The team is friendly, caring, and professional. It's comforting to have this team to take care of my medical needs.
May 01, 2026
I thought that the doctor was very helpful and got me back on track.
April 29, 2026
I've been going to Dr. Oang for 25 years and there's no other doctor that would compare to him in my opinion. He is fabulous.
April 27, 2026
Best Doctor I have ever had.
April 23, 2026
I've been a patient of Dr Oang for a couple of years now and he and his staff always treat me with respect and kindness. He's very knowledgeable and I have no problem with him saying what he believes is my best interest and advice for my care.
April 20, 2026
Very happy with my doctor.
April 20, 2026
Staff always professional, polite and caring, Doc always answers any questions that I have e and explains what Teat Results mean
April 17, 2026
Most doctors should be exactly like Dr. Oang. He's very professional. His nurse, (name removed), is the greatest, very professional, very attentive, and always very caring. And I wish more doctors were like him. He's a great doctor.
April 17, 2026
Dr. Oang is a great doctor! His knowledge and help and expertise has blessed us beyond words! The best doctor we have ever had the privilege to be patients of. He more than once has saved our lives with his great skills and knowledge. He is a great doctor and healer! We will really miss him as he gets closer to retirement ! He is the best!!!!
April 15, 2026
Hello, my name is (PHI removed). I have been a patient of Dr. Wong's for about 30 years. I would keep him forever and ever if that was possible. He is a wonderful person. He's a great professional and he's very friendly. I love him. Bye-bye.
April 09, 2026
He is very good and too the point, and very good at what he does we like him & we're going to keep him for a while thank you the (PHI removed) family.
April 06, 2026
Dr Oang, works with me to maintain my health so I can stay active. He and his staff are professional. Friendly and easy to communicate with. I always leave the office feeling great and cared for. I'm a happy patient of my PIH Doctors.
April 01, 2026
The whole team here is attentive as well as considerate. Never have to wait longer than 12 minutes. Nurses are very nice. Dr. is thorough.
March 30, 2026
I definitely like the service and my doctor. It's just too bad that he's retiring, but I'll be able to have him for three years. I appreciate the service. It was well. I'm satisfied. Thank you.
March 26, 2026
I just want to say that Dr. Oang is the best doctor I've ever had. It's the best doctor my wife has ever had. We feel extremely comfortable with him. He spends time. He listens to our concerns. And I think I can't give enough kudos to him.
March 26, 2026
My husband and I have been with Dr. Oang for 33 years and have had the best experience as his patients. He has taken great care of us and we are extremely pleased with his service, time, medical knowledge, recommendations and availability to help treat us with all of our ailments.
March 26, 2026
Dr. Sy Oang is one of the best doctors at PIH. He definitely sets the bar for his professionalism, care, and compassion he provides to his patients, and he is the only reason we have stayed at PIH.
March 20, 2026
I don't want to share Dr Oang with additional patients so no 10 rating!! (name removed) his nurse is awesome as well.
March 18, 2026
(Name removed) and Dr Oang has been taking care of me and my husband for a long time! Very happy with both of them
February 25, 2026
GREAT MAN AND DOCTOR
January 27, 2026
I think Dr. Sy Oang is one of the best physicians I've ever had, met, and dealt with. He's very, he explains things very well. He's very, very, very knowledgeable and gives you insight to some of the most upcoming and current information about health care, my health care. He makes it very patient-oriented. So that's really an important thing, I think, for a physician. He individualizes care every single time. And it's all about you and what your future will behold. And he saved my life. So I think he's excellent with finding a cancer that I had. His office staff is excellent, professional, knowledgeable, and experienced, especially (name removed). And I like (name removed) too, but Michelle is
January 27, 2026
Dr Oang is the Best Dr. who cares about his patients and spends so much time listening.
January 26, 2026
Dr Oang and his nurse (name removed) are excellent service providers
January 26, 2026
great experience
January 23, 2026
Dr Sy Oang is the best,
January 21, 2026
Hello, my name is (PHI removed). Our visit on January 21st with Dr. Wong was, as always, very, very good. We drive two hours to see him and two hours back home. That's four hours to see this doctor. He is that good. He is exceptional. That's all. I can't, I don't think I can say more. He's just great. We love him. Thank you.
January 19, 2026
Been dr Oang's patient for 30+ years trust him completely.
January 16, 2026
Dr. Oang is the best! Very satisfied with him as my PC Provider for years.
January 12, 2026
Professional, knowledgeable and kind staff members.
January 12, 2026
Friendly and professional staff.
January 05, 2026
Dr . OANG is very professional and caring.He answers all my questions
January 02, 2026
I truly trust this physician!
December 31, 2025
Love dr oang and his staff he's on point about my health issues. They are a 10??????
December 29, 2025
Dr Oang is the best! He listens and he explains. Thank you!
December 19, 2025
We have complete faith in Dr Oang and his nursing staff (name removed). Thank you PIH, keep up the great work!
December 17, 2025
Very professional service.
December 15, 2025
Dr Oang is very friendly, professional and knowledgeable.
December 12, 2025
Dr Sy oang and staff are the best.
December 12, 2025
Do Oang is a fine and caring physician.
December 10, 2025
Dr Oang has been my Dr. for many years. He is very open and honest. He does not make you feel rushed and thoroughly listens and explains everything regarding bloodwork results. He is the best!
December 10, 2025
Communication with this office is very good thanks to (name removed). Dr. Oang always takes this time with us and he follow us through with any issues he sees.
December 10, 2025
Great
December 08, 2025
The whole entire staff is wonderful. Thank you so much for taking care of my mom. And I accidentally pressed two for the beginning, thinking that one, yes and no, that's it. So technically, everything should be a four. Okay, thank you. Bye.
December 08, 2025
Dr. Oang always wonderful and knowledgable and answers all concerns
December 04, 2025
This doctor cares for all, all his patients. He listens to us all. He makes time for us all. He's a very good doctor. He's the best doctor I've ever seen.
November 24, 2025
Dr Oang and his nurse are so helpful and caring. Professional and patient! Never feel rushed or treated as just a number!
November 21, 2025
Dr. Oang and his nurse are always so kind and professional. Highly recommend them.
November 20, 2025
Dr. Sy Oang is like my best favorite doctor ever. He's helped my mind. He's calmed me down, not only with the medication, but conversations. He helped my fears for medication because a lot of people said I didn't have faith. And I realized, hey, I need medicine for some things. And I thanked him so much when I seen him the other day. And I just love that doctor. He's my best doctor. And my family loves him too, even though they don't go in personally. Thank you.
November 19, 2025
Dr. Oang has been my long-term primary physician. He's a great, great doctor, great person, takes good care of me. I highly praise him. I highly recommend him. He does a great job. Thank you.
November 17, 2025
We tell our friends of PIH Health and Dr Oang! He"s been our doctor almost from his beginning at PIH! Now, he's only working three days a week! He has saved us from many bad health issues! We admire and appreciate him!
November 12, 2025
Dr Sy Oang has been our Dr since he started practicing! We respect, admire his dedication! He is now getting ready to retire and hope we are still here before he does!
November 12, 2025
I've been with this provider for more than 20 years and don't see a need to go anywhere else
November 10, 2025
Dr Sy Oang , makes you feel like family,
November 07, 2025
Dr. Oang has been my Dr. for 25 years, do you think I would have stayed with him if he wasn't a great man and DR.
November 05, 2025
Office staff are very efficient , and Dr Oang is the best doctor in town.
November 05, 2025
I get the best care.. Thank you to Doctor and staff
November 03, 2025
Excellent profession and caring. Dr. Oang is the best!
November 03, 2025
Great Dr.
November 03, 2025
Dr Oang is probably the best physician that I ever had. If he trained every doctor in Whittier, nobody would ever think of missing their appointment. He's in a class by himself! Nurse Michelle is also to be commended for her kindness and being so professional! God Bless!!!
October 27, 2025
Compassionate Doctor
October 27, 2025
Dr. Oang is great!! He shows interest in what I have to say and explains in a way that I understand.
October 24, 2025
I've been seeing Dr Oang for a couple of years now and trust him with the utmost respect. He takes the time to go over everything with regarding your health and makes suggestions as to future treatments and plans for your health.
October 20, 2025
I love Dr.Sy Oang and his staff, we've been with him 6 years and feel great about our health management with him and his staff. Thank you
October 15, 2025
I have been very content with the operation and how business is conducted at PIH
October 13, 2025
Great doctor, great service!
October 13, 2025
Dr Oang is very personable & easy to talk to. He is very knowledgeable and helpful.
October 13, 2025
Dr. OANG IS SO GOOD TO OUR FAMILY. HE IS THE BEST. LOVE HIM. EXPLAINS EVERYTHING.
October 08, 2025
terrific experience as always.
October 06, 2025
I'm okay!!
October 03, 2025
Dr Oang, explains my labs results and tells me what I'm doing well and what I can change to feel better. Dr Oang and staff are the best team and I'm blessed to have them as my medical team.
October 01, 2025
Love Dr. Oang. He always takes the time to explain everything so i understand; he listens and addresses all my concerns.
September 26, 2025
Our appointment was at the end of the day when there were no other patients after us. The doctor was able to spend far more time with us and provide more in depth information than usual. This was a welcomed surprise. The more common experience has been a quick visit, in and out, because the doctor is usually behind and needs to get to the next patient. All visits should be like our last visit, ideally.
September 24, 2025
Both (name removed) and Dr. Oang are great!
September 19, 2025
It was good!
September 18, 2025
Excellent. Caring & trustworthy!
September 17, 2025
Hi, the last question, I pressed three only because by recommending him, he's gonna have more patients and it's hard enough for us now to get appointments. So it's even gonna make it harder, but he is an excellent doctor. I highly recommend him. But again, it's the problem that I think the doctors at PIH are overwhelmed because it takes so long to see a doctor at PIH. So that's my answer to number three. Yes, Dr. Long is thoroughly recommendable. Thank you, I(PHI removed).
September 15, 2025
My wife and I are 71 years old, and we've been going to PIH since the 80's. Dr. Oang has been our primary care doctor for 25 years. Unfortunately, my wife and I have had more than our share of medical problems. Dr. Oang has been there to diagnose our problems and guide us through our treatments. He has an amazing knowledge of all things medical, including drug related interactions or problems. He has correctly diagnosed medical problems with us that top specialists at the best teaching hospitals here in Ca. didn't see. My wife and I have complete trust in Dr. Oang. We are so fortunate to have him as our doctor, and we consider him our friend. Best Regards, (PHI removed)
September 08, 2025
Dr Oang and (name removed) are so phenomenal in the care and respect to their patients! Would definitely highly recommend them to family and friends and even people behind me in the grocery line! ?
September 05, 2025
Dr Oang is very knowledgeable and always explains in a very clear and easy understanding manner. Appreciate his patience and time.
September 03, 2025
I appreciate my doctor Oang because he is sincere and cares about me (his patients).
August 29, 2025
Just absolutely live Dr Oang! He spends time and is very thourough. My favorite dr ever
August 28, 2025
Dr. Oang is an excellent doctor. I trust him 100% with my care. He is thorough, kind, explains things clearly, answers all questions, and spends as much time with you as needed. I have never had such a fabulous health care provider.
August 27, 2025
(Name removed) is amazing. His nursing staff is very supportive of him and they seem to have a great relationship and take very good care of their patients. Dr. Ong is amazing and such a great practitioner. He treats his patients with passion and compassion. Thank you.
August 27, 2025
The doctor took lots of time. He was thorough in asking questions. He made it very understandable and it was a nice and pleasant experience.
August 04, 2025
Dr. Sy Oang is knowledgeable, compassionate, and truly listens. I felt heard and well cared for throughout my visit. The treatment plan was clear and personalized. I highly recommend him.
July 28, 2025
Dr Oang is an excellent physician. His nurse (name removed) is equally fantastic
July 28, 2025
Always a positive experience with Dr. Oang
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