HIPAA Group ID of record to be unenrolled in APC: 3: Account ID: AN: 100: R: Patient ID, Member ID or Business ID of record to be unenrolled in APC: 4: Last Name: AN: R: Last Name of record to be unenrolled in APC; Business Name should be used for business records: 5: First Name: AN: R: First Name of record to be unenrolled in APC; should not ....