Had a slip and fall in 2011 in Pathmark. Hired an attorney and have not had no type of communication with him in over 2 yrs. Can I switch lawyers

You can absolutely switch lawyers and you should do so immediately. The failure of your attorney to communicate for two years is unacceptable and suggests that your cas was being neglected. You should have another attorney immediately look into your case to make sure your lawyer has been working on it and either way, get a new lawyet.