HealthCareAtlasUSA

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Doctors / CA

WARREN DAVID JOHNSTON, MD

CARDIOVASCULAR DISEASE (CARDIOLOGY)

Medical school: UNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY

Graduated: 1975

Offers telehealth

NPI: 1427052802

Practice Locations (5)

PROVIDENCE MEDICAL FOUNDATION

8078 E SANTA ANA CANYON RD

ANAHEIM, CA 928081108

7149742900

PROVIDENCE MEDICAL FOUNDATION

1950 SUNNY CREST DR, SUITE 2900

FULLERTON, CA 928353641

7149925350

PROVIDENCE MEDICAL FOUNDATION

1100 W STEWART DR

ORANGE, CA 928683849

7146339111

PROVIDENCE MEDICAL FOUNDATION

1140 W LA VETA AVE, SUITE 430

ORANGE, CA 928684226

7145435555

PROVIDENCE MEDICAL FOUNDATION

1140 W LA VETA AVE, SUITE 770

ORANGE, CA 928684229

7148358715

Source: CMS National Downloadable File, September 2026.

WARREN JOHNSTON, MD | HealthCareAtlasUSA