If your old insurance is still good, can you order it in your former state and have it shipped to you? If not, try your local health department. They may know of programs to help you out. It's a tough spot to be in and I wish you the best of luck.
This should be classed as an emergency so any hospital or clinic should help, i'm also insulin dependant but i don't know much about american health laws, but if u don't get insulin u will end up with hyperglycaemia (high blood sugar) and ketoacidosis which will result in even more medical bills.