Beware of Electrostim Medical Services, also known as EMSI. They provide small electric shock devices if you have back pain - which doesn't even help I bet. We went to our doctor who apparently ordered one for us but didn't really explain to us what he was doing and that it would cost so much. We have good insurance coverage however this medical unit still costs thousands of dollars even with insurance covering much of it.
My wife didn't even want this medical device or services and never used it at all. We were finally able to convince them we didn't order it nor want it and sent it back. However they sent a 'supplies' packet in the mail which I refused and sent back to their office and they are charging us $300 for it even though we never received it. It makes me sick to my stomach how medical service and medical insurance companies can get away with so much and normal people get stuck with bills. My insurance company basically said it was our word against their word if we received it and the big company always wins.
Needless to say this company has terrible customer service and will try and nickle and dime ever penny from you even if you never even used their stupid device. BEWARE!