Dr. Kathleen Tierney-Oconnor is a pediatrician in Great Neck, New York and is affiliated with multiple hospitals in the area, including Cohen Children's Medical Center and Long Island Jewish Medical Center at Northwell Health. She received her medical degree from SUNY Upstate Medical University and has been in practice for more than 20 years. Dr. Kathleen Tierney-Oconnor accepts Aetna, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Kathleen Tierney-Oconnor is highly recommended by patients.