If the therapist on the Talking Therapies (IAPT) Treatment episode is the referring one, then you can run the Referral Count in Hypercube
Filters to apply:
Set the Employment Support Suitability Indicator to Yes and then group by the Allocated Therapist.
If you just want active referrals, apply the Exclude CLOSED Cases found under the Additional Filters section.
If you want to apply a date range, apply the Referral Received date range, found under the Care Pathway Filters section.
You will then receive a table by Therapist with a referral count for each, you can then click on the Referral count hyperlink to jump you into the patient table.