Why is this patient attributed to my ACO?

Problem

Why is a patient attributed to the ACO?

Solution

Consider the following: The patient appeared in a QASSGN file (Quarterly attribution list). CMS has attributed this patient to the ACO. This is typically due to claims data associating a TIN/NPI in your ACO with the patient. If this is incorrect, we recommend getting in touch with your CMS representative for further assistance.