What are my chances for MD/DO?

Hey Everyone,

I took the MCAT twice.
old MCAT in January 2015: 29 overall (11 PS, 7 VR, 11 BS)
new MCAT April 2016: 507 overall ( 131 Chem, 123 Verb, 128 Bio, 125 Psych)

Science GPA: 3.96
Cumulative GPA: 3.84
EC: Research (1 year), Tutor/Prep Course Instructor (4 years), Summer Camp Counselor for Children with cancer ( 2 summers), Hospital Volunteer/Internship (2 years), Volunteer Clinical trips to Mexico (2 years), Student Government (1 year), and shadowing (4 years)

What are my...

What are my chances for MD/DO?