Received call from heavily-accented "Dave Brown" claiming to be from EMCARE, regarding a bill I owed for emergency room services. The bill was already paid but the caller could not immediately give me the amount he was calling about - first red flag. He proceeded to verify four telephone numbers he had on file for me, only one of which was actually my number, the same he had reached me on. Gave me a number to call customer service to confirm that my payment had been recorded. It matched the information I had on the letter I received from the emergency care provider. Before I even stated why I was calling, the service rep said "The bill has a zero balance, How may I help you?" She said she never heard of EMCARE and did not know why they would be calling me about any bill. I don't know how "Mr. Brown" got a hold of so much information that made him seem legit but clearly something was not right with that call. Never volunteer any information - can't be too careful!