Groupby and page break by that group

Hello,

I currently have a SSRS report as follows:

CategoryTotalClaimsSumofClaimAmounts

154 6950.45

2 32 3240.25

3 0 0

I have a requirement to add department to this report and page break by department.This is the expected format:

Dept Name:Engineering

CategoryTotalClaimsSumofClaimAmounts

154 6950.45

2 32 3240.25

3 0 0

Dept Name:HumanResources

10 0

2 0 0

3 0 0

I am getting data to the report from a stored procedure and department field comes from a different table than what is already in the stored procedure. When I join the department table in the stored procedure. I am only getting data if corresponding total claims and sum of claim amounts exist.i.e I am only getting

Dept Name:Engineering

CategoryTotalClaimsSumofClaimAmounts

154 6950.45

2 32 3240.25

3 0 0

I want the total departments that exist in department table in the report with page break for each and corresponding values if there are any.

Thanks.