Search by what providers do, not what they're called — find everyone billing a given HCPCS/CPT code, and the facilities where it happens.
Type an HCPCS/CPT code or a procedure description. This is the highest-precision targeting in the platform — titles lie, billing doesn't.
Filter by state (and city where useful) so the result is your territory, not the nation. The count is your local market size for that procedure.
Providers — who bills the code, with volume; click through to their full NPivot profile. Facilities — where inpatient DRGs and outpatient APCs for the category run, via Hospital Search's procedure mode.
Send the filtered result to CSV and it's a call list — providers who verifiably perform your procedure, in your territory, with their practice details.