Warren Woo MD | Family Medicine Physician | Downey, CA | Whittier, CA | PIH Health
Warren Woo

Warren Woo MD


Family Medicine
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4.8 / 5 (based on 94 Reviews) View 27 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



University of Texas Health Sciences Center (San Antonio)

Medical Education

University of Texas Medical Branch Hospitals (Galveston)

Board Certifications

Family Medicine (General Cert)

Patient Reviews

August 31, 2021
Have had this doctor & staff members and they all are very pleasant, polite and patient. Doctor is the very best & the answers are explained very carefully so we understand. Thx
August 30, 2021
August 17, 2021
I am a long time patient and I am looking forward to continuing so.
August 16, 2021
Dr. Woo is a doctor, from the old school, that really gives his time, and his patients to the, to his patient. And he is undoubtedly. One of the best that Western many, many years. And the reason I'm with him is because he's the best one I could find.you could have for a personal physician, and I trust them explicitly with anything that I might need. Medically. He is a doctor that I've been with for many years, and the reason I am with him is because he is the best one I could find.
July 13, 2021
Dr. Warren Woo is a very conscientious and caring doctor. He takes the time to really listen to my concerns, and he explains medical solutions in a way that are easy to understand. Dr. Woo is a tremendous family doctor.
June 21, 2021
Dr. Woo is fantastic. Wouldn't go to any other doctor in the world.
May 18, 2021
I am a physician and whenever somebody ask me for a recommendation I tell them Dr. Warren Woo. They have consistently come back and told me that Dr Woo is the most compassionate conscientious physician they have ever had.
April 06, 2021
Compassionate and thorough physician. Addressed all my concerns.
March 30, 2021
Dr Woo is always caring and through. I am always very pleased with my care!
March 08, 2021
I felt safe and well taken care of
February 23, 2021
Everything was great the sliding door the check in the nurses the doctor the cleanliness. Thank you.
February 23, 2021
We love Dr. Woo. You lucked out when he came to your practice.
February 22, 2021
Dr. Woo is an excellent physician and I was very impressed with his knowledge and understanding of my case. I would see him again, and I did make an appointment. Thank you.
February 16, 2021
It is good to know you can trust your Health to a Doctor that actually cares about YOU AND YOUR HEALTH.
February 16, 2021
An issue came up so Dr Woo could not get to me at the time of my appointment. He is a wonderful doctor!!
February 08, 2021
Yes, Dr. Woo is very kind, very thorough, and very compassionate.
February 02, 2021
Dr. Woo is the best. He listens patiently and explains his rationale clearly.,
February 01, 2021
Very professional
January 26, 2021
Dr. Woo always takes the time to explain my health to me. He is a good doctor.
January 11, 2021
Dr. Woo has been my doctor for decades he took very good care of me in the hospital and I have recommended him to family members and people that I know. I rate him very highly.
January 04, 2021
Dr.Woo has always taken very good care of me.
December 15, 2020
Dr. Woo is the best. He definitely takes an interest in you as a person, not just a patient.
December 15, 2020
Dr Woo and his staff are the best!! Kind, caring, and very polite!!!
November 09, 2020
Thoughtful and thorough
October 26, 2020
Dr. Woo listened to my description of symptoms and was able to focus in on a possible diagnosis almost immediately. He followed through with appropriate tests and x-rays to confirm his diagnosis. He is an excellent physician.
October 20, 2020
Great doctor great nurses
October 16, 2020
We love Dr. Woo and are very lucky to have been his patients all these years. Too bad for everyone else, he isn't taking new patients.
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