Mark O'Brien DO

Physician Profile

Mark O'Brien, graduated from Michigan State University College Of Osteopathic Medicine in 1987. His primary practice is as a Specialist and an Internal Medicine.

DO: Doctor of Osteopathic Medicine


Specialties include:

• Specialist  
       search nearby: Oceanside [ 1.94 mi],   Vista [ 3.06 mi],   Carlsbad [ 4.9 mi],   Camp Pendleton South [ 6.29 mi],   Lake San Marcos [ 7.14 mi],   Bonsall [ 7.68 mi],   zip code: 92056
• Internal Medicine  
       search nearby: Oceanside [ 1.94 mi],   Vista [ 3.06 mi],   Carlsbad [ 4.9 mi],   Camp Pendleton South [ 6.29 mi],   Lake San Marcos [ 7.14 mi],   Bonsall [ 7.68 mi],   zip code: 92056