Dr. O'Brien graduated from University of Virginia School of Medicine in 1981 and has been in practice for 32 years. He currently practices at Hospital for Special Surgery Pediatric Service and is affiliated with Hospital for Special Surgery. Dr. O'Brien accepts multiple insurance plans including Aetna, MVP Health Plan and Medicare. Dr. O'Brien also practices at Hospital for Special Surgery Belaire Building in New York, NY. In addition to English, Dr. O'Brien's practice supports this language: Italian.