Biography

Dr. Justin Marasigan is a Board-Certified Gastroenterologist who 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 inSite Digestive Health Care in Ventura County, Dr. Marasigan was practicing 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.

Treatment Philosophy

My philosophy in medicine is taking a partnership-approach to each individual’s health and needs. I don’t like to tell patients what to do, but instead discuss the options, benefits and risks, and come to a decision with the patient. I was trained to treat each patient like you would a beloved family member, and I strive to do so with each visit.

Specialties and Services

Colonoscopy
Upper Endoscopy
Colon Cancer Screening
Liver Diseases

Languages

English

Education & Training

Fellowship: Gastroenterology, Millcreek Community Hospital, Erie, PA
Residency: Internal Medicine, St. John’s Health Osteopathic Division, Macomb, MI
DO: Kirksville College of Osteopathic Medicine, Kirksville, MO

Professional Affiliations

American College of Gastroenterology
American Gastroenterological Association
American Society for Gastrointestinal Endoscopy
American College of Osteopathic Internists
Christian Medical and Dental Association

Locations

Camarillo Office
4005 Mission Oak Blvd., Unit A
Camarillo, CA 93012
Phone: (805) 484-7921
Fax: (805) 388-5404

Oxnard Office
2241 Wankel Way, Suite A
Oxnard, CA 93030
Phone: (805) 983-0521
Fax: (805) 485-1484