Why would the Institute of Tecnology pay for your CCMA-AC exam if they weren't an accredited school, and why if what you say is true did you choose to go to this school.
CCMA-C is Basic & Clinical Specialty
CCMA-A Basic and Administrative Specialty
CCMA-AC Basic and Both Specialties
CMA doe not require 2 years of study! Eligibilty requirements :
1. Currently employed as a medicval assistant by a licensed physician or podiatrist in the US,
2. Graduate of an accredited medical assisting program in the US or,
3 Have at least two years experience as a practicing medical assistant in the US within the 5 years immediately preceding your application.
Applicants for the CLINICAL specialty must provide proof of training in administering injections and performing skin tests, training in venipuncture and skin puncture for the purpose of withdrawing blood.
My recommendation is to take CCMA-AC. Predictions for California are that medical assistants will be required in another 5 years to be California Certified.