Kristal Diaz, FNP

Did you know that Heart disease is the leading cause of death in the U.S.? This is why it’s important to have a cardiologist. Brian Feehan, DO is a board-certified physician, specializing in Cardiology. With an office conveniently located in Belleville, NJ, Dr. Feehan uses a personal approach to treat many heart diseases and conditions, both new and pre-existing. At Optum, our cardiologists offer a wide range of care, including echo stress test, electrocardiogram (EKG), echocardiogram, pacemaker monitoring and more. Optum accepts most major health plans.

Yilenny Dejesus Duran, FNP, is a dedicated Nurse Practitioner specializing in family medicine and internal medicine, with nearly five years of experience. She is passionate about diagnosing and treating a wide range of medical conditions, particularly chronic illnesses such as diabetes, hypertension, and cardiovascular diseases, while fostering strong, trusting relationships with her patients. Her approach to patient care is centered on compassion, empowerment, and collaboration, ensuring that patients feel respected and engaged in their health journey. Yilenny's commitment to improving long-term health outcomes reflects her deep understanding of the complexities and diversity within internal medicine. Generated from the website

Junior Espinal, FNP, is a dedicated and experienced cardiology nurse practitioner based in Belleville, NJ, specializing in cardiovascular disease and primary care. With over 20 years in medicine and a commitment to patient involvement in healthcare decisions, he provides care for patients aged 18 and above, speaking both English and Spanish fluently. Junior earned his medical degree from the Universidad Autónoma de Santo Domingo in the Dominican Republic and later obtained his Nurse Practitioner degree from Franklin University in Ohio. He is actively involved in medical missions with the Batey Relief Alliance, offering care to underserved communities in the Dominican Republic and Haiti, while also enjoying biking, cooking, and coaching baseball in his free time. Generated from the website