Justin Marasigan, DO

Justin Marasigan, DO

Appointment

LOCATIONS:

Dr. Justin Marasigan 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.

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
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rater8 Verified Patient

rater8 Verified Patient

Jan-2025

Dr Marasigan explain my results from my colonoscopy to a T I feel much better after speaking to the doctor about the results thank you, Doctor. Daniel Urango,
Patient Submitted Review

Patient Submitted Review

Nov-2024

I highly recommend Dr. Justin Marasigan! He is very caring and takes the time to listen attentively to all my concerns. His compassionate approach and excellent communication skills make me feel comfortable and well taken care of. I’m grateful to have found such a wonderful doctor!
rater8 Verified Patient

rater8 Verified Patient

Nov-2024

Dr. Marasigan was patient and attentive to my needs. He asked me pertinent questions and did not dismiss or make light of my concerns. I receive direct answers and he was cordial.
Patient Submitted Review

Patient Submitted Review

Aug-2024

I had a great experience with Dr. Marasigan. He was very caring, patient and attentive as he listened to me. I got the genuine sense that he wanted to understand my situation and help me. And he did just that. Thank you Dr. Marasigan.
rater8 Verified Patient

rater8 Verified Patient

Aug-2024

Dr. Marasigan was the perfect mixture of professional, knowledgeable and genuinely caring. I didn't get the sense that he thought I was just another number on his to-do list which is an experience that I've had with other doctors who seemed rushed to just get to their next appointment. Thank you Dr. Marasigan for your care and all of your help and knowledge.
Patient Submitted Review

Patient Submitted Review

Jun-2024

The office was clean and orderly. Dr Marasigan was through and answered all my concerned. He is Following up with the appropriate testing. When I left the office I felt I was in good hands and that my concerns were being taken care of.
Patient Submitted Review

Patient Submitted Review

May-2024

Front office very efficient only took a few minutes to be seen. Doctor was very thorough and informative. Did not rush me and listened to me answering all my questions.
Patient Submitted Review

Patient Submitted Review

Dec-2023

Had a great experience with this doctor I highly recommend it he is a straight shooter when it comes to talking with his patients and that's exactly what I need and it's exactly what I like
Patient Submitted Review

Patient Submitted Review

Oct-2023

Dr. Justin was very patient and understanding of our concerns. We were new to his office and he allowed enough time to complete the questionary forms and also waited on me to arrive to my sisters appointment. I really appreciate that.
Patient Submitted Review

Patient Submitted Review

Oct-2023

My visit with Dr. Marasigan went well, it was my first time visiting. The doctor was patient and I felt comfortable speaking to him. He listened to me and provided me with thorough feedback regarding my health concerns.
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