He is a graduate of UMDNJ-New Jersey Medical School. He completed his residency training at The University Hospital, Newark. In his practice, Dr. Deehan focuses on general orthopedics. Dr. Deehan is rated 5.0 stars out of 5 by his patients. He is in-network for AARP, Blue Cross/Blue Shield, and Empire BlueCross BlueShield, in addition to other insurance carriers. His professional affiliations include Morristown Medical Center, Virtua Physician Partners, and Hackettstown Medical Center.