Where is a hdl cholesterol usually done? at a hospital?

Where labs are done: An HDL cholesterol is just a lab test done on blood that is drawn, so wherever phlebotomy (professional blood drawing) is done the labwork can be arranged. This would include a doctor's office or clinic, lab, er, instant care, hospital, etc. Hdl cholesterol is often measured as part of a lipid panel that includes other cholesterol and triglyceride values.

Blood test: Hdl cholesterol is part of a panel of tests called a "lipid panel". It is done via a blood sample, and this can be drawn in a doctors office or at a lab facility that has blood drawing capabilities. Most hospitals can do this, but it is done more often in the outpatient/ambulatory setting as it is considered part of primary care/family practice and internal medicine and preventive care.