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Dr. Mark O'Brien DO
Oceanside, CA with 21+ years experience

Gender: Male
Years In Practice: 21+
Phone Number: (760) 439-6581

Specialty

Internal Medicine
  • General Internal Medicine
  • Hospital Medicine/Hospitalist

Contact

3156 Vista Way
Suite 405
Oceanside, CA 92056
Phone: (760) 439-6581
Fax: (760) 439-6581

Affiliated Hospitals

Tri-City Medical Center
Oceanside, CA

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