Cardiothoracic Surgery

In some cases, open heart surgery might be indicated to repair damage due to complications from heart disease, genetic defects, and valve disorders.

Loma Linda University Medical Center – Murrieta counts on a team of experts dedicated to helping patients live fuller, healthier lives. With decades of combined clinical experience, our surgeons lead in research and treatment of many diseases of the chest including:

  • Heart
  • Valve disorders
  • Coronary artery disease
  • Aneurysms
  • Heart failure
  • Congenital heart defects

Our surgeons utilize the most advanced equipment and latest surgical techniques, including minimally invasive surgery and video-assisted thoracic surgery, to achieve the best possible outcomes.

Meet Michael Koumjian, MD

Michael Koumjian, MD - Director of Cardiothoracic Surgery

Director of Cardiothoracic Surgery

Michael Koumjian, MD, is the medical director of the cardiothoracic surgery program at Loma Linda University Medical Center - Murrieta. 

Dr. Koumjian has been practicing medicine since 1989 and was board certified in Surgery in 1984. He was also board certified in Thoracic Surgery in 1986.  He received his medical degree from the New Jersey Medical School in 1977, did his internship in Basic Surgery and residency in General Surgery at the Naval Hospital in San Diego.

Board Certifications
American Board of Thoracic Surgery, Thoracic Surgery (Cardiothoracic Vascular Surgery), 1986

Oregon Health Sciences University, 1988

To make an appointment with Cardiothoracic Surgery, call: