Cardiologists and electrophysiologists are constantly faced with evolving techniques and tools for diagnosing and treating arrhythmia patients. Rapid change and new research make it difficult to ensure that electrophysiology diagnosis and treatment is consistent with the most current guidelines. Primary care physicians encounter patients with arrhythmia symptoms, heart failure, and syncope and must determine if patients are at risk of life-threatening arrhythmias or may otherwise benefit from referral to cardiologists or electrophysiologists. A lack of familiarity with current clinical guidelines regarding ICD implantation exists, and primary care physicians were found to be less aware of clinical guidelines than cardiologists. This finding highlights the need to improve knowledge and competence among primary care physicians and cardiologists as it relates to current diagnosis and treatment guidelines for arrhythmia patients.