Coastal Internal Medicine
Medical Group, Inc.
Illness Management
From Diabetes to Parkinsons to High Blood Pressure, Coastal Internal Medicine can help you manage your chronic illness with care and expertise.
Caring Staff
Work with the best front-office staff in North County! Our reception and front office care team is friendly, professional, and will help ensure you get the best care possible!
Experienced Care
Dr. O'Brien has over 35 years in the medical field and oversaw all hospitalist care at local Tri-City Medical center for 30 years. When you go Coastal, you go with the best!
Great Location
Located in the heart of Vista right next to Tri City Hospital, Coastal Internal Medicine is as convenient as it is thorough and caring about your every-day health!
Dr. Mark O’Brien has been one of our families primary care physician for over 20 years. Dr. O’Brien is caring, patient, and very knowledgeable
Amy C.
I have always felt seen, heard, and understood. Dr. O'Brien is science and reality based yet sees through a holistic lens positively focusing on solution vs stewing in the challenge or condition.
Jill K.
Dr. O'Brien has been thorough in his evaluation of my issues, provided easy to understand treatment options and followed through with thoughtful care so I have been able to live my healthiest and best life.
Mark B.
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