PB★★★★★5.0(1)Dr. Patrick Brennan, DOFamily Medicine SpecialistSouth Lyon, MIAccepting patientsAffiliated with a Castle Connolly Top HospitalAccepting patientsAffiliated with a Castle Connolly Top Hospital(248) 437-2525(248) 437-2525Ratings & ReviewsMost RecentHighest Rated06/02/2011Great Doctor / Rude Staff / BewareDr Brennan is a true professional. Some of the office staff however; is horrendous. I could not recommend this practice due to the poor conduct of the staff. 1