I am assuming you and the child's father are not on speaking terms, otherwise you could have asked him to find that out for you. If you know what type of insurance that he carries, you can contact the insurance company directly to find out. If he get his insurance through his employer, you can contact the company that he works for. If you are still on good terms with the man's parents or siblings, they can act as intermediary to get that info for you. There are also support groups for women in the same situation as you. If all else fail, you can go to court to force him to provide that info.