Dr. Jay Guan, M.D. earned his medical degree at Chicago Medical School—Rosalind Franklin University and completed his residency at University of Southern California. He finished his fellowship in Loma Linda University Medical Center. Dr. Guan has extensive training in a broad range of GI disorders and procedures. His clinical focus includes Inflammatory Bowel Disease, Barret’s Esophagus, NASH, GI motility disorders, Hepatitis B/C, and Eosinophilic Esophagitis.
Dr. Jay Guan, M.D. earned his medical degree at Chicago Medical School—Rosalind Franklin University and completed his residency at University of Southern California. He finished his fellowship in Loma Linda University Medical Center. Dr. Guan has extensive training in a broad range of GI disorders and procedures. His clinical focus includes Inflammatory Bowel Disease, Barret’s Esophagus, NASH, GI motility disorders, Hepatitis B/C, and Eosinophilic Esophagitis.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
He never told me when is my next appointment for my procedure
(1 week ago)
Mar-2026
Excellent and compassionate doctor
(1 week ago)
Mar-2026
Very professional and informative
(1 week ago)
Mar-2026
What a blessing to have an amazing Dr very caring and willing to listen to his patient complain and will do everything to help and find solution to the problems of his patient
(1 week ago)
Mar-2026
Very nice, good bedside manner and very knowledgeable
(1 week ago)
Mar-2026
Easy to understand. Great energy.
(1 week ago)
Mar-2026
My Mom just had her first visit with Dr. Guan. We both like Dr. Guan. He listen to my Mom, was personal, and explained the first steps and how he we will follow up in a few months. He answered all our questions.
(1 week ago)
Mar-2026
Just had my scan and I’ll see him for my follow up in 2- weeks
(2 weeks ago)
Mar-2026
Excellent service l, he explained everything so clearly
(3 weeks ago)
Feb-2026
Dr Guan took his time and all of my questions. He is very professional, knowledgeable and very kind. He really cares about helping his patients feel better.
(3 weeks ago)
Feb-2026
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GI-Camarillo
4005 Mission Oaks Blvd. Unit A Camarillo, CA 93012
GI-Oxnard
2241 Wankel Way Suite A Oxnard, CA
Dr. Jay Guan, M.D. earned his medical degree at Chicago Medical School—Rosalind Franklin University and completed his residency at University of Southern California. He finished his fellowship in Loma Linda University Medical Center. Dr. Guan has extensive training in a broad range of GI disorders and procedures. His clinical focus includes Inflammatory Bowel Disease, Barret’s Esophagus, NASH, GI motility disorders, Hepatitis B/C, and Eosinophilic Esophagitis.
He never told me when is my next appointment for my procedure
Excellent and compassionate doctor
Very professional and informative
What a blessing to have an amazing Dr very caring and willing to listen to his patient complain and will do everything to help and find solution to the problems of his patient
Very nice, good bedside manner and very knowledgeable
Easy to understand. Great energy.
My Mom just had her first visit with Dr. Guan. We both like Dr. Guan. He listen to my Mom, was personal, and explained the first steps and how he we will follow up in a few months. He answered all our questions.
Just had my scan and I’ll see him for my follow up in 2- weeks
Excellent service l, he explained everything so clearly
Dr Guan took his time and all of my questions. He is very professional, knowledgeable and very kind. He really cares about helping his patients feel better.