He is affiliated with Newark Beth Israel Medical Center, Clara Maass Medical Center, and Saint Barnabas Medical Center. Amerigroup, Blue Cross/Blue Shield, and Coventry are among the insurance carriers that Dr. Costeas honors. He attended medical school at Stony Brook University Medical Center, School of Medicine. His residency was performed at a hospital affiliated with Stony Brook University Medical Center. Dr. Costeas has received the following distinction: Montclair Super Doctors.