Kamran Chaudhary, MD

Dr. Mark Balek, a highly skilled and experienced cardiologist, offers an array of specialized services at his state-of-the-art practice in Oak Park, Illinois, conveniently located just steps from the CTA Blue Line. With his expertise spanning internal medicine, echocardiography, nuclear cardiology, cardiovascular computed tomography, and cardiovascular medicine, Dr. Balek provides comprehensive care for patients of all ages, prioritizing their heart health through advanced diagnostic procedures and treatments. His commitment to delivering personalized attention is further enhanced by his fluency in Polish, ensuring clear communication and fostering strong patient-physician relationships.

Julianna A. Fajardo, DNP, FNP-BC, RN is a Board-Certified Family Nurse Practitioner at the Chicago Cardiology Institute, offering expert cardiovascular and critical care. With a Doctorate from Rush University and multiple clinical certifications, she brings years of advanced nursing experience to patient care and education. Julianna also serves as a Visiting Professor at Chamberlain University, mentoring future nurses. Dedicated to compassionate, evidence-based care, she’s recognized for her leadership and commitment to improving health outcomes.

Dr. Solomon “Joey” Sager is Director of Electrophysiology and a partner at Chicago Cardiology Institute. Board-certified in Cardiology and Electrophysiology, he specializes in atrial fibrillation ablation, ventricular tachycardia treatment, and advanced cardiac device care. Trained at the University of Miami and Rush University, Dr. Sager is a leader in complex EP procedures and offers cutting-edge cardiac care in a patient-centered setting. He speaks Spanish and Hebrew and is committed to accessible, expert heart rhythm care.