XX/XX/XXXX I received a collection notice from Transworld Systems Inc. attempting to collect a debt from a creditor named XXXX XXXX. Upon contacting Transworld Systems Inc . I learned that XXXX XXXX is an anesthesiologist group. On XX/XX/XXXX I had a XXXX at a facility that was approved by XXXX XXXX. This medical procedure is covered XXXX % with our company 's medical plan. I was never notified of any outstanding balances from any doctors, labs or the facility until this collection letter on XX/XX/XXXX. When I contacted the agent for XXXX XXXX she stated that XXXX XXXX was not on XXXX XXXX approved list. XX/XX/XXXX I contacted the Dr. 's office and was told by the insurance person that it was n't their responsibility to check to see if the XXXX is on an approved insurance list. She also stated she has received approx. XXXX calls relating to these collection letters. During her attempts to contact XXXX XXXX she found out that this company went bankrupt therefore all telephone # 's were disconnected and that Transworld Systems Inc. refused to disclose any information to the Dr 's office. In the remarks column on my claims & statements from XXXX XXXX it states " SERVICE NOT COVERED NO AUTH - PROVIDER RESPONSIBILITY. Prior to my procedure the Dr 's office assured me that my procedure was covered by XXXX XXXX as well as their facility and Dr 's. I do not believe it is the patients responsibility to have to further check to see if anyone or anything else is n't covered. Another factor that I noticed is that the amount Transworld Systems Inc. is attempting to collect is {$530.00}. The actual unpaid bill that was submitted to XXXX XXXX was for {$510.00} discounted to {$240.00} with the member discount. The {$530.00} is not my responsibility nor do I intend to pay it. If I had this procedure done at a hospital it would not be up to me to check out if each medical dr. or lab is covered by my health insurance. The hospital submits the insurance information and gets the approval to go forward with all procedures.