Dr. Justin Marasigan, D.O. earned his medical degree from Kirksville College of Osteopathic Medicine in Missouri. Dr. Marasigan went on to complete his Internal Medicine Residency in the Detroit area and his Gastroenterology specialty training in Erie, Pennsylvania. He applied a variety of experiences from rural offices to large academic centers throughout Western Pennsylvania and Eastern Ohio.
Dr. Justin Marasigan, D.O. earned his medical degree from Kirksville College of Osteopathic Medicine in Missouri. Dr. Marasigan went on to complete his Internal Medicine Residency in the Detroit area and his Gastroenterology specialty training in Erie, Pennsylvania. He applied a variety of experiences from rural offices to large academic centers throughout Western Pennsylvania and Eastern Ohio.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
He talks too fast. I didn't feel comfortable with him.
(5 days ago)
Jan-2026
Professional
(5 days ago)
Jan-2026
He’s GREAT ! Thank you for your help Dr.
(5 days ago)
Jan-2026
He asked questions and didn’t give time to respond because he is a fast talker.
(1 week ago)
Jan-2026
He’s smart, conscientious, and nice. The doctor also has a top notch team that experienced for my endoscopy. It’s hard for me to imagine better care than I received.
(1 week ago)
Dec-2025
The Appt felt rushed. I wasn’t asked if I had any questions even though I had a list on my lap.
(3 weeks ago)
Dec-2025
Very informative and interested in me as a patient
(1 month ago)
Dec-2025
Sound it like AI, with no true answers.
(1 month ago)
Dec-2025
Dr M is very to the point. Doesn’t mess around and I like that.
(1 month ago)
Dec-2025
Hi is good dactor
(1 month ago)
Nov-2025
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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. Justin Marasigan, D.O. was raised in the Los Angeles area. He earned his undergraduate degree from the University of Southern California and his medical degree from Kirksville College of Osteopathic Medicine in Missouri. Dr. Marasigan went on to complete his Internal Medicine Residency in the Detroit area and his Gastroenterology specialty training in Erie, Pennsylvania. He applied a variety of experiences from rural offices to large academic centers throughout Western Pennsylvania and Eastern Ohio. Prior to joining the team in Ventura County, Dr. Marasigan practiced Gastroenterology for 7 years in Washington State.
When he is not at work, Dr. Marasigan enjoys spending time with his wife, twin son and daughter, and dog Sadie
He talks too fast. I didn't feel comfortable with him.
Professional
He’s GREAT ! Thank you for your help Dr.
He asked questions and didn’t give time to respond because he is a fast talker.
He’s smart, conscientious, and nice. The doctor also has a top notch team that experienced for my endoscopy. It’s hard for me to imagine better care than I received.
The Appt felt rushed. I wasn’t asked if I had any questions even though I had a list on my lap.
Very informative and interested in me as a patient
Sound it like AI, with no true answers.
Dr M is very to the point. Doesn’t mess around and I like that.
Hi is good dactor