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Warren Johnston, MD, Cardiology, Orange, CA, Providence St. Joseph Hospital Orange

WarrenDavidJohnstonMD

Cardiology Orange, CA

Preventive Cardiology

Chairman Dept. of Cardiology St. Josephs Heritage Medical Group and Director of the Women's Heart Center at St. Josephs Hospital. Director of the Orange County/High Desert Providence Heart Institute and Co-Director of the Southern California Providence Regional Heart Institute. Member of the Providence System Leadership Counsel.

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Summary

  • Dr. Warren Johnston is a cardiologist in Orange, CA and is affiliated with St. Joseph Hospital. He received his medical degree from University of Rochester School of Medicine and Dentistry and has been in practice 42 years. He specializes in adult Cardiology both diagnosis and treatment and is experienced in women and heart disease.

Education & Training

  • University of California (Irvine)
    University of California (Irvine)Fellowship, Cardiovascular Disease, 1980 - 1982
  • University of Southern California/LACUSC Medical Center
    University of Southern California/LACUSC Medical CenterFellowship, Critical Care Medicine, 1979 - 1980
  • University of Southern California/LAC+USC Medical Center
    University of Southern California/LAC+USC Medical CenterResidency, Internal Medicine, 1975 - 1980
  • University of Southern California/LAC+USC Medical Center
    University of Southern California/LAC+USC Medical CenterChief Residency, Internal Medicine, 1978 - 1979
  • University of Rochester School of Medicine and Dentistry
    University of Rochester School of Medicine and DentistryClass of 1975

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1976 - 2025
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Cardiovascular Disease

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification Allscripts Enterprise EHR, Allscripts, 2012
  • Fellow (FACP) American College of Physicians, 1999
  • Fellow (FACC) American College of Cardiology

Publications & Presentations

PubMed

Professional Memberships

Hospital Affiliations