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.
The best
(2 days ago)
Jul-2026
He is thorough, explains things extremely well, is both detail and big picture oriented/focused. Continues to be most effective physician I have experienced in my 80 years of life.
(1 week ago)
Jul-2026
Very nice and kind
(2 weeks ago)
Jul-2026
I
(2 weeks ago)
Jun-2026
Great visit
(3 weeks ago)
Jun-2026
Felt very comfortable meeting him.
(3 weeks ago)
Jun-2026
Buen doctor
(3 weeks ago)
Jun-2026
Excellent doctor. He received me as a patient and gave me full attention, listened my concerns without judgment, and validated my feelings.
(3 weeks ago)
Jun-2026
The doctor was very knowledgeable and suggested a few things that I did not know existed. I am very thankful for the visit today.
(3 weeks ago)
Jun-2026
Great MD. Communicates well and super friendly.
(1 month ago)
Jun-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.
The best
He is thorough, explains things extremely well, is both detail and big picture oriented/focused. Continues to be most effective physician I have experienced in my 80 years of life.
Very nice and kind
I
Great visit
Felt very comfortable meeting him.
Buen doctor
Excellent doctor. He received me as a patient and gave me full attention, listened my concerns without judgment, and validated my feelings.
The doctor was very knowledgeable and suggested a few things that I did not know existed. I am very thankful for the visit today.
Great MD. Communicates well and super friendly.