<prompt> Human: About 2 years ago, my dentist told me I needed a root canal. Their office didnt provide the service but their other location in town did. The day I arrived the dentist looked at my tooth and told me to schedule the procedure. He was under the impression I was there for a consultation, and I thought I had scheduled the procedure for that day.I ended up waiting in the lobby for about 3 hours while they contacted my insurance to get the procedure approved and getting my financial portion. I paid my portion and had the procedure done that day.About a month ago, I received a bill for 500 from a dentists office named completely different from the one I went to but I think the address is the same. It has no details about the amount owed but thats the only dental work Ive had in the past few years. How do I go about disputing this? I no longer have that dental insurance.  <response>: Man you should do a little leg work before posting on here. Here is what a little leg work looks like:First call would be to the dentists office.Ask them what the bill is for, and why are you being charged for it? Likely answer will be that the insurance did not come through. Ask for any information they have. Date of service, service code, cost of service, how much you paid, why the insurance denied the claim etc. Let them know you will contact the insurance company to.Call the insurance company, and ask them why the claim wasnt covered. Find out if it is a case of missing information. usually it is. Ask them what additional information is needed, and where to send that information, and how long it takes to process the additional information.Call the dentist back and have them send the information to the correct location, andor send you the information so that you can forward it to the correct location.After you have these answers, and following the logical next steps then you should proceed to asking questions on here. 