What type of doctor can order a platelet aggregation test?

Hematologist: Usually this is a test ordered by a hematologist but it can be ordered by your primary care doctor as well.

Neuroscientists Too: As it turns out, this may be important for the prevention of strokes as well as cardiovascular disease. As such, a neurologist or neuropsychiatrist may have an interest as well. When you consider that as many as 20% of people can be resistant to the effects of aspirin, it becomes important.