Sy H. Oang

Sy H. Oang DO

Specialties:

Internal Medicine
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4.9 / 5 (based on 361 Reviews) View 117 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

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
July 10, 2025
Doctor Oang is a one of a kind man and doctor. He cares deeply for his patients. He is very thorough and professional. My wife and I trust him one hundred percent for our care. We drive two hours plus depending on traffic one way just to see him. It is well worth the drive to know you have, in my opinion, one of the best doctors in Southern California. I arrived half an hour early and he saw me five minutes after I arrived! We don't know what we will do if and when he retires. He is irreplaceable! He is not only a great doctor but a very good man. Each year he goes to Cambodia and offers his services for free to people who would probably not have any health care if not for him and the other doctors who go with him. We have been patients of him for about twenty years and we absolutely love this man!!
July 07, 2025
great doctor
July 07, 2025
Professional and caring provider & staff.
June 30, 2025
It was very good, the staff are kind, helpful and friendly.
June 26, 2025
I am glad to be under Dr Oang's care again. I trust him with the care of my health and wellbeing.
June 25, 2025
He does not take that much interest in my problem he kind of poo poo's it like it's no problem he's afraid to be concerned because he over prescribed in October & I ended in the hospital he kind of keeps away that's my feeling
June 23, 2025
Dr. Oang hás been our Dr. for 25 years, and for 25 years he has given us outstanding care. there is no way we would ever change doctors.
June 18, 2025
Service really good nurse (name removed) very nice and love dr oang
June 18, 2025
Not much, & all l can say is that overall PIH is definitely the place too go. DR. Sy Oang & is staff especially the nurses in fact all the staff even the ones that checks you in the front are very nice & friendly & especially Dr Sy Oang He's the bomb. Thank you Dr.Sy Oang for being our family Dr. we appreciate you & the staffs that are under you are very nice & polite & understanding. (PHI removed)
May 30, 2025
Dr. Oang is the best Doctor I've ever had. He is very wise and treats me with great respect, kindness, and provides exceptional advice on how to continue to deal with my different medical conditions.
May 30, 2025
Dr Oang is the best!
May 28, 2025
Dr Oang and nurse (name removed) are absolute the best! They listen and care for me & my wife. Have been very happy with both of them for a long time.
May 23, 2025
He is the best!!!
May 23, 2025
Dr. Oang and the nurses and staff were very friendly and professional.
May 21, 2025
I really trust the Doctors advise he gives me.
May 19, 2025
Dr. Oang has been my provider, my primary care provider for many years now. I wouldn't want any other doctor. He's very caring and very consistent, very conscientious. Thank you.
May 14, 2025
Dr Oang is very informative and explains himself in a friendly and professional manner. He is extremely knowledgeable and wisely uses factual information and personal knowledge to help his patients.
May 14, 2025
Dr. Sy Oang is a good doctor and he is very helpful to me. He's a great man.
May 14, 2025
Dr Oang is an exceptional doctor. Spends a lot of time explaining things. He keeps me healthy!! Would not go to anyone else!
May 12, 2025
Always a pleasure. Both nurse and Dr. are thorough and courteous .
May 12, 2025
Dr. Sy Oang is the best physician that we've ever had and my family is very happy with his care. We highly recommend him to others.
May 07, 2025
Very good.
May 05, 2025
Dr. Sy Oang is a very good doctor. I trust him completely.
May 02, 2025
Your online appointment and call in for appointment needs lots work/overhaul. Can't get timely appt. Most time are lots wait and long stretch
April 28, 2025
I have no complaints about my appointment with Dr. Oang. He always takes his time with me and explains everything thoroughly. I have recommended him to other people in my family.
April 28, 2025
Dr. Oang is great. (name removed) is a wonderful asset to the office.
April 25, 2025
Good morning. I was totally satisfied with my visit with Dr. Oang and I'm more than pleased that he is my regular physician and I look forward to many more years of his attention to my physical and mental needs. Thank you. Bye.
April 25, 2025
I have been going to Dr. Oang now for a couple of years now and have always trusted him with my care. He's very knowledgeable and thorough and explains everything with the utmost respect and understanding that he knows. I trust him with my health.
April 23, 2025
I've been with Dr. Sy Oang for many years. He provides the best health care! He cares very much about his patients. He listens and takes the time to address any questions or concerns. You have many great doctors at PIH Healthcare, but Dr. Oang is one of the best!
April 23, 2025
Always polite, professional, listens and answers any questions that I may have
April 23, 2025
Dr. Oang, always listens and explains in a way that I fully understand. He demonstrates care and compassion.
April 23, 2025
Excellent Doctor! Dr. Oang always listens & offers good, encouraging advice. He is so knowledgeable and caring & truly cares about helping me in the best way possible. He teaches me how to help myself & helps to heal my body! He is the best doctor I have ever had! Thank you!!!!
April 18, 2025
Dr. (name removed) and his staff were amazing, just fantastic. The doctor listened to every single concern I had. He gave me detailed feedback and also was very thorough and clear with my lab results and gave me advice how to improve. He also gave me a pathway forward on healthier living and was just amazing. I really appreciate the doctor. He definitely experienced and knows what he's talking about. Also the staff was very courteous and polite. This is the reason why I go to PIH and go to Dr. (name removed) and his staff.
April 18, 2025
I wouldn't recommend Dr Oang to anyone else. He's got far to many patients for me to want to share him!!!
April 18, 2025
Dr Oang and his staff are always professional and very caring. Dr Oang always makes me feel as if he personally cares about me and my issues. Always makes sure I understand why I need to listen and follow his instructions and/or suggestions. And he is willing to offer alternative suggestions if I'm insistent on trying alternative options first.
April 17, 2025
Oh, I really enjoyed going to Dr. Oang and all his staff, especially Michelle. I think she is her head nurse. Everyone treats me with such respect. My doctor, Dr. Oang, cares so much for me and my family. I have referred him to a very good family. Their name is (name removed), their last name. And it's (name removed), my good girlfriend, and her husband (name removed). And they love him just as much as I do. So yes, Dr. Oang is the best. Thank you.
April 17, 2025
I had a positive experience, parking was no problem, the facility was large and clean, staff was helpful, I did feel comfortable with my physician
April 11, 2025
He is great doctor , He is very personal .
April 11, 2025
Dr Oang is an excellent doctor. His very caring about his patients and provides complete care where needed. I trust Dr. Oang with my life.
April 07, 2025
Dr. Oang is one of the best doctors I have ever seen. He is through and has a pleasing personality.
April 02, 2025
Dr. Oang and staff are awesome. I always feel better when I leave. Dr. Oang encourages me to do things that contribute to me being as healthy as possible. He gives me many tips on how to manage my diabetes. I'm blessed that I have Dr. Oang, and PIH is blessed to have him on their team. HAPPY PATIENT?
April 02, 2025
The best
March 31, 2025
I wish appointments were easier to get
March 27, 2025
Great experience as always. Doctor Oang is very knowledgeable, courteous and caring.
March 19, 2025
Dr. Oang spent the correct amount of time asking me questions and explaining things excellently. He's very thorough.
March 12, 2025
He's an excellent doctor, I've known him for many years, I've always been happy with him. Thank you.
March 12, 2025
Dr. Oang is very caring and thorough
March 07, 2025
Dr Oang and all staff are very friendly and helpful with any concern you may have! Highly recommend! I have recommended several family members and all of them appreciate the recommendation and very happy with this office
March 07, 2025
Dr. Oang is a gold star doctor. He is everything a doctor should be.
March 05, 2025
Dr. SY Oang is an awesome doctor. He's very caring and he cares about his patients.
March 03, 2025
I've been seeing Dr Oang for 17+ years, and he has never disappointed. He listens carefully to what I say, distills the important information and provides wholistic care. His office staff are also the best - friendly, helpful, and responsive.
February 28, 2025
Very patient and caring provider!
February 27, 2025
Dr. Oang does an excellent job, very thorough going over everything, gives plenty of time, does a great job taking care of the patients.
February 26, 2025
Oh, my doctor has always shown his patience a lot of respect and the best care for their condition, he is really dedicated to his profession of care for people.
February 26, 2025
Great
February 26, 2025
Doctor was very patient and listen to what I have to tell him about myself are very pleased with this doctor
January 29, 2025
Dr. Oang has been my Doctor for 25 years. in those years he has always been the best Dr.
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