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.
Comprehensive and supportive. Great counsel and post visit medical plan.
(4 days ago)
Feb-2026
Very through in explaining my medical results. Took time and didn’t rush. Was very nice.
(1 week ago)
Jan-2026
Great Dr.
Hes very thorough and explains everything in easy to understand terminology.
(1 week ago)
Jan-2026
My visit was a procedure and I am going to see Dr. Marasigan now, as Dr. Miller retired.
(2 weeks ago)
Jan-2026
He is a very competent physician that listens to everything you have to say without making you feel rushed. He takes notes on everything and does the proper testing to find out what’s wrong, which is something I’ve been looking for in a Dr for a very long time.
(2 weeks ago)
Jan-2026
Great doctor
(2 weeks ago)
Jan-2026
Very satisfied with service.
(3 weeks ago)
Jan-2026
He talks too fast. I didn't feel comfortable with him.
(1 month ago)
Jan-2026
Professional
(1 month ago)
Jan-2026
He’s GREAT ! Thank you for your help Dr.
(1 month ago)
Jan-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. 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
Comprehensive and supportive. Great counsel and post visit medical plan.
Very through in explaining my medical results. Took time and didn’t rush. Was very nice.
Great Dr. Hes very thorough and explains everything in easy to understand terminology.
My visit was a procedure and I am going to see Dr. Marasigan now, as Dr. Miller retired.
He is a very competent physician that listens to everything you have to say without making you feel rushed. He takes notes on everything and does the proper testing to find out what’s wrong, which is something I’ve been looking for in a Dr for a very long time.
Great doctor
Very satisfied with service.
He talks too fast. I didn't feel comfortable with him.
Professional
He’s GREAT ! Thank you for your help Dr.