In most cases, you should not contact the at-fault driver's insurance company. It is likely that they will contact you to obtain information. Be careful when visiting with the at-fault driver's insurance company as many insurance company's use deceitful and manipulative tactics in order to avoid paying a full and fair settlement amount. Never allow yourself to be recorded, never provide a full medical history to an insurance company, never visit with an insurance company if you are still in the hospital or under medication of any kind, and never accept the first offer, if any is made, from an insurance company. An experienced personal injury attorney at Labrum Law Firm would be more than happy to visit with you about how they can visit with the at-fault driver's insurance company and negotiate on your behalf.