Hi there. The Patient Referrals report is designed for tracking referrals as you describe, however it does require the referrer to be added to the Additional, Billing Details, or Notes tab of a patient file.
1. The first three filters of the Patient Referrals report all refer to the Notes tab of a patient's file, and whether you have checked Professional for the referral.
2. The ‘Referring Doctors’ filter will report on referrals added to the Billing Details tab.
3. 'Patient GP' will report on referrals added to the Additional tab.
In your case, I believe option 3 is the filter you will need to select.