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

Warren Woo MD


Family Medicine
View Location
4.8 / 5 (based on 99 Reviews) View 8 Comments
  • Group

Make an Appointment


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

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!
View More Reviews