Warren Woo MD | Family Medicine | La Habra, CA | PIH Health
Warren Woo

Warren Woo MD


Family Medicine
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4.9 / 5 (based on 108 Reviews) View 30 Comments
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Dr. Warren Woo initial motivation to study medicine came from three areas of interest: the challenge of advancing medical science, the complexity of human beings and their systems, and the relational aspect of caring for patients. During his childhood, Dr. Woo experienced kindness and compassion from his own family physician, and this made an impact upon him in choosing to specialize in family practice. He most enjoys hearing from a patient that “what we did for them changed their life.” He also enjoys helping to give patients more quality years to enjoy time with their family and significant events in their lives through improved healthcare. Prior to beginning medical school, Dr. Woo gained life experience as a grocery store clerk, a door-to-door salesperson selling cookware, and a math tutor, chemistry assistant and summer camp counselor while in college. Prior to starting medical school, he worked as a tennis pro.

Office Information

Hospital/Group Affiliation

PIH Health Whittier Hospital

PIH Health Physicians





  • Family Medicine


Medical School

University of Texas Medical Branch Hospitals (Galveston)


University of Texas Health Sciences Center (San Antonio)

Board Certifications

  • Family Medicine

Patient Reviews

July 20, 2022
Fabulous bedside manner Outstanding
July 05, 2022
Professional and caring
June 29, 2022
Dr Woo is a great caring person that weighs options to care.
June 28, 2022
Dr. Woo always takes the time to listen to how I'm feeling at the same time he addresses all my issues. He follows up on all my previous conditions. Explains what is going on with my body and what the next steps will be.
June 22, 2022
Dr. Woo has been both mine and, before passing, my Wife's Family Doctor for well over 30 years and has kept both of us healthy. Yery excellent Doctor.
June 22, 2022
Dr. Woo has been my primary doctor for (I'd say) about 30 years. Maybe longer. His knowledge of medicine and practice is extensive. He understands and empathizes human behavior and the fears that us mere mortals have and helps put our fears to rest. I could go on and on but I think I pressed my point. (PHI removed)
June 22, 2022
very professional, always feel that I am important to my doctor.
June 14, 2022
it was a good experience Dr Woo and staff were very good with dressing my wound.
June 08, 2022
Dr. Woo continues to take his time explaining medical aspects to me. He took the time to carefully explain my medical lab results.
May 24, 2022
I love the service and I love doctor, that's why I don't go to another location yet. I will wait until he retire (INAUDIBLE) then I go.
May 04, 2022
Dr. Woo has been my family doctor for. 20 years has never failed to give me good advice and has never given, well, there's never given me bad advice hazards me to do things that I needed to do, even though I was reluctant, he got me to do it. I'm glad you did. as far as your as far as the organization he's Quest now. I think their telephone system needs to be rehabbed sometimes I can't get a hold of talk to rule is easily as possible, but that has nothing to do with him and that's all.
April 27, 2022
Dr. woo does a very through review and explanation
April 26, 2022
Dr. Woo always gives me the time and fully explains my medical condition with me so when I leave his office I feel confident that he cares about my health.
April 13, 2022
Excellent service
April 06, 2022
The experience was pleasant and informative.
April 05, 2022
thankful for the expertise
March 22, 2022
Dr Woo and staff were knowledgeable, efficient and friendly. It is nice that they remember who you are when entering.
March 02, 2022
It's always a pleasure meeting with Dr. woo, he's so patient and kind and always addresses my concerns.
March 01, 2022
Good visit as usually, thank you,,,
February 16, 2022
Doctor Woo is exceptional, wouldn't go to anybody else.
February 15, 2022
I always leave my appointment's feeling like my medical needs have been met. Dr. Woo takes the time needed to understand any issues that I have and then address them. The staff is professional and friendly. Thank You for being my long term medical contact.
February 08, 2022
Dr. Woo's knowledge and experience allowed him to diagnose my unusual condition. I am very grateful.
November 23, 2021
Dr. Woo is kind and caring. He explains everything and takes the time needed for good patient relations. Truly amazing and what every doctor should be like. I am grateful to have such a wonderful doctor. He is truly the best because he cares about his patients.
October 26, 2021
I appreciate the time Dr. Woo spent with me explaining the concerns I had. I left his office with a better understanding of my condition.
October 20, 2021
Dr Woo explained the options of my care and how it would effect my health. He always takes the time to listen
October 13, 2021
Dr Woo has been the best physician I have ever had. He is great. Always gives wonderful care.
October 06, 2021
Its great to know your in good hands
October 06, 2021
Really great experience.
October 06, 2021
I appreciate the care everyone shows, from the receptionist, the nurse, the doctor.
October 06, 2021
Dr. Woo is an amazing doctor. I've been seeing him for years now ... PIH is lucky to have him - he's the best!
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