It was your complete lack of physician shadowing and only clinical exposure with a DDS that resulted in your poor application cycle.
Also several of your schools were state public schools(UCSD, UCI, Minnesota) that admit few non residents with no connection to the state. Rush expects thousands of clinical and non clinical volunteering hours.
Before you reapply you need to accumulate 50 hours of in person shadowing, including primary care). You also need 200+ hours of clinical volunteering with patient contact (hospice is good).
When you reapply with those hours I suggest these schools:
U Michigan
Michigan State
Wayne State
Central Michigan
Western Michigan
Oakland Beaumont
Toledo
Carle
Medical College Wisconsin
Vermont
Tufts
Quinnipiac
Hofstra
Einstein
Mount Sinai
Rochester
New York Medical College
Albany
Jefferson
Drexel
Temple
Penn State
George Washington
Virginia Commonwealth
Eastern Virginia
Wake Forest
NOVA MD
USF Morsani
TCU
Cincinnati