★★★★★5.0(1)Dr. Barry Marks, DOGeriatric Medicine SpecialistPhiladelphia, PAAccepting patientsAffiliated with a Castle Connolly Top HospitalAccepting patientsAffiliated with a Castle Connolly Top Hospital(215) 843-8578(215) 843-8578Ratings & ReviewsMost RecentHighest Rated03/08/2017Dr Marks is an excellent doctor.This office has always treated me with the upmost respect. Dr. Marks runs a very professional and compassionate office.1