He has established an impressive career working with OrthoMaryland in Baltimore. Dr. Waldman is the Director of the Center for Joint Preservation and Replacement at the Rubin Institute for Advanced Orthopaedics at Sinai Hospital. Previously, Waldman stood as the President of the Medical Staff at Sinai Hospital from 2009 until 2011. Barry Waldman MD is also a Clinical Instructor of Orthopaedic Surgery at the Johns Hopkins School of Medicine.