Jay Guan, MD

Practice: Unio Specialty Care

Specialty: Gastroenterology

Office locations: Camarillo, Oxnard

Most recent review: 5 days ago New
4.9 out of 5
838 Ratings
355 Comments

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.

4.9 out of 5
838 Ratings
355 Comments

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.

I appreciate the kindness and respectful help I am receiving and for the young ladies at the front desk Thank you you guys are awesome and understanding in my book you guys are THANK YOU DR.and your staff

Rated 5 out of 5 stars
(5 days ago) Oct-2026

Everyone was very nice and professional. Didn't spend much time in waiting room. Everything thing went very well.

Rated 5 out of 5 stars
(1 week ago) Oct-2026

He was on time. Answered my questions and also gave me new information

Rated 5 out of 5 stars
(1 week ago) Oct-2026

Dr. Guan explained everything in terms I could better understand! Dr. Guan’s friendly, but professional approach made comfortable able to absorb much of what was said!

Rated 5 out of 5 stars
(1 week ago) Oct-2026

Dr.Guan was very nice and professional he explained everything to me in detail.

Rated 5 out of 5 stars
(1 week ago) Oct-2026

Dr Guan was patient and very knowledgeable.

Rated 5 out of 5 stars
(3 weeks ago) Oct-2026

Great Doctor Highly Rated to all 5 Star

Rated 5 out of 5 stars
(3 weeks ago) Oct-2026

Dis not feel anything. Took a nap was all I remember

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Dr. Guan is the absolute best. I can’t say enough about how caring and thorough he is. These days it is so difficult to ever get a hold of your doctors, and yet he is always responsive and supportive. He also has a wealth of knowledge, experience and passion. He truly listens and always strives to find the most effective and innovative solutions. I have so much respect and appreciation for him, and I am a difficult patient with some serious issues. I have never had a GI doctor who I have felt has given me better care. I recommend him most highly, and I have referred my family members, who now are patients of his as well. That is my highest compliment because I trust him with not only my care, but the care of my loved ones!

Rated 5 out of 5 stars
(1 month ago) Sep-2026

Very timely and personable. Easy to understand and talk to and he listens very well.

Rated 5 out of 5 stars
(1 month ago) Sep-2026