You can do this by creating a Case Load report, under Patient Reports. Follow the steps below:
Click Reports > Patient.
Click New Report at the top-right of the page.
From the Report Type drop-down menu, select Case Load.
From the Patient Status drop-down menu, select Current.
From the Practitioner drop-down menu, select the relevant practitioner.
(Optional) Add any other filters as desired.
You can make edits to your filters by clicking the Edit (pencil) icon.
You can view the list in Halaxy, or you can export or print the report by clicking the Export or Print icons at the top-right of the screen.