Dr. James J. Lee, M.D. received his medical training at St. Louis University School of Medicine and completed his residency and fellowship training at the University of California, Irvine. Dr. Lee has been involved in numerous endoscopic treatments of heartburn. Additionally, he has performed more than 75 radio-frequency ablation procedures for Barrett Esophagus with dysplasia, as well as EMRs.
Dr. James J. Lee, M.D. received his medical training at St. Louis University School of Medicine and completed his residency and fellowship training at the University of California, Irvine. Dr. Lee has been involved in numerous endoscopic treatments of heartburn. Additionally, he has performed more than 75 radio-frequency ablation procedures for Barrett Esophagus with dysplasia, as well as EMRs.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
Felt rushed. 12 minutes
(6 days ago)
Nov-2025
He listened and heard are concerns and goals and helped us to develop a plan that would offer the best outcome.
(6 days ago)
Nov-2025
Friendly, professional and knowledgeable-
(1 week ago)
Nov-2025
He is good took care of my problems
(1 week ago)
Nov-2025
Dr. Lee was amazing. I went in scared about my brand new diagnosis and even though the appointment wasn't all that long he explained things well and answered every one of the questions on my list. I highly recommend him. He was open and easy to talk to..
(2 weeks ago)
Nov-2025
Very positive, he explains things clearly so I always understand the treatment I’m receiving and what is going on with my body. Very serious and concerned about his patients.
(2 weeks ago)
Nov-2025
My family and friends all go to Dr. Lee as their gastroenterologist because he is compassionate, highly skilled and a relatable doctor. Every interaction I have had, as recently as 2023, De Lee was able to diagnose and solve my intestinal issue with highly successful results. Dr. Lee and I had a consultation yesterday and he determined and I agreed, it was important I have a colonoscopy based on my symptoms that I described to him. As long as Dr. Lee is in practice, I will always have him be my gastroenterologist because he is the very best.
(2 weeks ago)
Nov-2025
Very kind and knowledgeable.
(2 weeks ago)
Nov-2025
Great interaction with Dr. Lee. Staff was very accommodating as well
(3 weeks ago)
Nov-2025
Dr Lee is a excellent person God bless him and his family
(1 month ago)
Nov-2025
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GI-Orange
1010 W. La Veta Ave Suite 570 Orange, CA 92868
Dr. James J. Lee, M.D. has a private practice located in Orange, California and is a clinical assistant professor at the University of California, Irvine. In the last two decades, Dr. Lee has been involved in numerous endoscopic treatments of heartburn. Additionally, he has performed more than 75 radio-frequency ablation procedures for Barrett Esophagus with dysplasia, as well as EMRs. Dr. Lee contributes regularly to Becker ASC review and his most recent article was quoted in Men Health Journal in 2015. After receiving his medical training at St. Louis University School of Medicine, Dr. Lee completed his residency and fellowship training at the University of California, Irvine. He is married and has one child in college. On his days off, he enjoys tennis, hiking, and traveling. One of Dr. Lee future goals is to establish a heartburn center at St. Joseph Hospital and raise awareness for esophageal cancer.
Felt rushed. 12 minutes
He listened and heard are concerns and goals and helped us to develop a plan that would offer the best outcome.
Friendly, professional and knowledgeable-
He is good took care of my problems
Dr. Lee was amazing. I went in scared about my brand new diagnosis and even though the appointment wasn't all that long he explained things well and answered every one of the questions on my list. I highly recommend him. He was open and easy to talk to..
Very positive, he explains things clearly so I always understand the treatment I’m receiving and what is going on with my body. Very serious and concerned about his patients.
My family and friends all go to Dr. Lee as their gastroenterologist because he is compassionate, highly skilled and a relatable doctor. Every interaction I have had, as recently as 2023, De Lee was able to diagnose and solve my intestinal issue with highly successful results. Dr. Lee and I had a consultation yesterday and he determined and I agreed, it was important I have a colonoscopy based on my symptoms that I described to him. As long as Dr. Lee is in practice, I will always have him be my gastroenterologist because he is the very best.
Very kind and knowledgeable.
Great interaction with Dr. Lee. Staff was very accommodating as well
Dr Lee is a excellent person God bless him and his family