The average patient rating for Dr. Efthimiou is 5.0 stars out of 5. His areas of expertise include knee problems, raynaud's, and osteoporosis. Dr. Efthimiou is in-network for Blue Cross/Blue Shield, Workers' Compensation, Aetna Medicare, and more. His residency was performed at a hospital affiliated with Brown University. He has received professional recognition including the following: New York Super Doctors. In addition to English, Dr. Efthimiou speaks Greek. He is professionally affiliated with New York Methodist (NYM) Hospital.