About Dr. John Dervan
Heart Associates of Long Island (HALI) is a practice of Stony Brook Community Medical, PC. At HALI, you are at the heart of everything we do. We are specialists in cardiac catheterization and offer a full-service approach to your cardiac care. This includes special programs within our practice like our Heart Function Center, to help better understand and manage your various cardiac health needs.
Medical Disclaimer: The information on this website is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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