Joel Harnick, MD is a board-certified physician, specializing in Pediatric cardiology. With an office conveniently located in New Hyde Park, NY, Dr. Harnick offers specialized pediatric cardiology care in a kid-friendly environment. At Optum, our board-certified heart doctors diagnose and treat many heart diseases and conditions, both new and pre-existing. We recognize that children shouldn’t be treated like small adults. Each child has their own special requirements when it comes to caring for their heart. Optum accepts most major health plans.