I'm not sure if many people out there have experience with this, but I am doing billing for a practice who has recently started using a third party vendor to offer chronic care management services. I have come across several patients that this company is billing the doctor for but when I go look into the documentation for the month, it only says they left several voicemails but never in the course of that month did they actually speak with the patient. Can this still be billed to insurance? I don't know a lot about ccm as this is all new to me, but my gut is saying no, this shouldn't be billed as the patient never really received any service that month. But I could be wrong.... Thanks for your help in advance!