James Roum, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
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636 providers
Availability last updated 05/28/2026
James Roum, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
Kia Ghiassi, DO
Internist
1100 W Stewart Drive
Orange, CA 92868
Amir Ghiassi, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
Linh Thong, MD
Nephrologist
1100 W Stewart Drive
Orange, CA 92868
Shahid Hayat, MD
Internist
1100 W Stewart Drive
Orange, CA 92868
Selma Prechel, OD
Internist
1100 W Stewart Dr Orange
Orange, CA 92868
Selma Prechel, OD
Internist
La Palma Nursing Center
Anaheim, CA 92801
Dr. Melanchton Mangoba, MD
Internist
1471 S Riverside Ave
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Selma Prechel, OD
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Selma Prechel, OD
Internist
1442 Irvine Blvd Suite 104
Tustin, CA 92780
Tariq Kelker, MD
Internist
1525 3rd St # 205
Riverside, CA 92507
Dr. John Lee, MD
Internist
1051 Bryan Ave
Tustin, CA 92780
About The Practice
Cardiology Specialists of Orange County, with locations in Santa Ana, Irvine, and Newport Beach, California, provides high-quality cardiovascular services focusing on disease prevention and treatment. The outstanding physicians are board certified in cardiovascular diseases and use cutting-edge technology combined with consistently superior compassionate care to offer optimal patient outcomes.
At Cardiology Specialists of Orange County, patients benefit from triple-accredited laboratory facilities and comprehensive in-house services to make everything as easy as possible. These awards recognize Cardiology Specialists of Orange County's superior commitment to patient care and its provision of quality diagnostic testing.
The advanced diagnostics available include echocardiograms, stress testing, Holter monitoring, event monitoring, and vascular screening. The Santa Ana location also has a nuclear testing and imaging system and offers external counterpulsation (ECP) therapy for patients with chronic stable angina.
Cardiology Specialists of Orange County treat conditions including coronary artery disease, high blood pressure, congestive heart failure, and atrial fibrillation. They can also diagnose and treat symptoms like chest pain, arrhythmia, shortness of breath, and heart murmurs.
Patients can receive expert care for circulatory problems like chronic venous insufficiency and varicose veins. Treatments for these conditions include patient information and education on making healthy lifestyle choices and a wide range of medications. The cardiologists also perform minimally invasive cardiac catheterization procedures such as balloon angioplasty, as well as pacemaker and defibrillator implantation.
For over 30 years, Cardiology Specialists of Orange County has provided invaluable services to the local community, and their cardiologists also have roles at partnering hospitals. The practice has an established patient base with a solid reputation for patient-centered care and receives numerous referrals via word of mouth.
For timely and successful treatment of your cardiovascular problems, call Cardiology Specialists of Orange County or book an appointment online today.
Ravi Masson, MD
Cardiologist
700 N. Tustin Avenue
Santa Ana, CA 92705
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Board-certified cardiologist Ethan Yalvac, MD, FACC, FSCAI, RPVI, CBNC, is proud to provide comprehensive care to patients at Cardiology Specialists of Orange County in Santa Ana, Irvine, and Newport Beach, California.
Dr. Yalvac received his Bachelor of Arts in economics and math, graduating cum laude. He earned his Doctor of Medicine from the University of Texas Medical Branch School of Medicine in Galveston. He then completed his internship and residency in internal medicine at Tulane University in New Orleans, Louisiana. Afterward, Dr. Yalvac completed a general cardiology fellowship at the Tulane University Heart and Vascular Institute before completing an interventional cardiology fellowship at the University of California, San Diego.
He holds certification from the Board of Nuclear Cardiology in advanced cardiac life support and is Level II trained in echocardiography. Dr. Yalvac is a member of the Society for Vascular Ultrasound, and a fellow of the American College of Cardiology and the Society for Cardiovascular Angiography and Interventions.
Dr. Yalvac is affiliated with Hoag Hospital and Hoag Vascular Institute in Newport Beach, Hoag Hospital & Orthopedic Institute in Irvine, St. Joseph Hospital in Orange, and Orange County Medical Center in Santa Ana, California.
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Dr. Ethan Yalvac, MD
Internist
700 N. Tustin Avenue
Santa Ana, CA 92705