Nevermind, I found it. The only DO school that offers such a program is UMDNJ. You must take both the MCAT and LSAT and be admitted to both schools. I've pasted the other schools that have a similar program, if anyone else is interested.
Case Western Reserve University, Cleveland
Duke University School of Medicine, Durham, N.C.
Harvard Medical School, Boston
Southern Illinois University School of Medicine, Springfield
Stanford University School of Medicine, Palo Alto, Calif.
University of Calgary Faculty of Medicine, Alberta, Canada
University of Chicago Pritzker School of Medicine
University of Florida College of Medicine, Gainesville
University of Illinois College of Medicine, Urbana-Champaign
University of Medicine & Dentistry of New Jersey, New Jersey Medical School, Newark
University of Medicine & Dentistry of New Jersey, Robert Wood Johnson Medical School, New Brunswick
University of Pennsylvania School of Medicine, Philadelphia
University of Puerto Rico School of Medicine, San Juan
University of Texas Medical School at Galveston
Vanderbilt University School of Medicine, Nashville, Tenn.
Yale University School of Medicine, New Haven, Conn.