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.
So far, so good. He responds to changes needed in my treatment.
(1 week ago)
Apr-2026
Friendly and personable, respectful and responsive, professional and positive
(2 weeks ago)
Mar-2026
Dr. Guan listens to you
(2 weeks ago)
Mar-2026
Very through in explaining treatment options and recommendations.
(2 weeks ago)
Mar-2026
Best staff at a surgical center I have ever seen.Each member of the team was a ten plus.Forth time I have had this procedure and it was far superior to any other experience .
(3 weeks ago)
Mar-2026
Dr GUAN is very professional & explains everything even answers my questions. Time will tell with all the tests & my results. His whole staff just great thank you
(3 weeks ago)
Mar-2026
He never told me when is my next appointment for my procedure
(3 weeks ago)
Mar-2026
Excellent and compassionate doctor
(1 month ago)
Mar-2026
Very professional and informative
(1 month 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 month ago)
Mar-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.
So far, so good. He responds to changes needed in my treatment.
Friendly and personable, respectful and responsive, professional and positive
Dr. Guan listens to you
Very through in explaining treatment options and recommendations.
Best staff at a surgical center I have ever seen.Each member of the team was a ten plus.Forth time I have had this procedure and it was far superior to any other experience .
Dr GUAN is very professional & explains everything even answers my questions. Time will tell with all the tests & my results. His whole staff just great thank you
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