About the physician
Leo Polosajian, MD, MS, FACC, FHRS, CCDS
Cardiologist & Cardiac Electrophysiologist at Cardiac Rhythm Specialists, Inc. in Reseda, California. Heart rhythm care for patients in Los Angeles, the San Fernando Valley, Thousand Oaks, Simi Valley, Glendale, and North Hollywood is provided from the Reseda office.
About Dr. Leo Polosajian
Leo Polosajian, MD, MS, FACC, FHRS, CCDS provides evaluation and treatment of heart rhythm disorders. His clinical areas of interest, as described on the original Cardiac Rhythm Specialists website, include complex arrhythmia management and ablation, atrial fibrillation ablation, supraventricular tachycardia ablation, heart failure management, cardiac resynchronization therapy, and pacemaker and cardiac defibrillator implantation. The recovered biography also notes training in cardiac catheterization and nuclear cardiology.
He completed fellowship training in cardiac electrophysiology at Cedars-Sinai Medical Center. He completed internal medicine residency at Columbia University’s St. Luke’s-Roosevelt Hospital in New York City and cardiology fellowship at the University of Connecticut. He also holds a master’s degree in biomedical sciences from Barry University in Florida.
The original practice biography described a patient-centered approach: taking time to explain care and treatment options, coordinating with colleagues, and treating patients with kindness, respect, and professionalism.
Professional credentials
Leo Polosajian, MD, MS, FACC, FHRS, CCDS
These designations appear after Dr. Polosajian’s name. They describe medical training, professional fellowship, and cardiac device certification.
MD
Doctor of Medicine
MS
Master of Science
FACC
Fellow of the American College of Cardiology
FHRS
Fellow of the Heart Rhythm Society
CCDS
Certified Cardiac Device Specialist
Hospital affiliations
Current confirmed hospital affiliations are:
- Providence Cedars-Sinai Tarzana Medical Center
- Cedars-Sinai Medical Center
- Valley Presbyterian Hospital
Affiliation means hospital relationships used in care. It does not mean there is a separate Cardiac Rhythm Specialists office at each hospital.
Clinical focus
- Complex arrhythmia management and ablation
- Atrial fibrillation ablation
- Supraventricular tachycardia (SVT) ablation
- Heart failure management
- Cardiac resynchronization therapy
- Pacemaker implantation and follow-up
- ICD implantation and follow-up
Training
- Cardiac electrophysiology fellowship, Cedars-Sinai Medical Center
- Cardiology fellowship, University of Connecticut
- Internal medicine residency, Columbia University’s St. Luke’s-Roosevelt Hospital, New York City
- Master’s degree in biomedical sciences, Barry University, Florida
Languages
The original practice biography stated that Dr. Polosajian is fluent in English and Armenian.
Service area
The office is in Reseda. Patients also come from Los Angeles, San Fernando Valley, Thousand Oaks, Simi Valley, Glendale, North Hollywood.

Office location
Cardiac Rhythm Specialists
Leo Polosajian, MD, MS, FACC, FHRS, CCDS
Cardiology & Cardiac Electrophysiology
7640 Tampa Ave, Suite 101
Reseda, CA 91335
Call (818) 718-1600