Complex sentence: Weinstein served for 32 years as an academic pathology department chair, in Chicago, Illinois and then Tucson, Arizona, serving simultaneously, as a department chair, a practicing physician, an educator, a researcher, and a serial entrepreneur engaged in university technology transfer.
Split into simpler sentences: Weinstein served for 32 years as an academic pathology department chair, in Chicago, Illinois and Tucson, Arizona. He served, simultaneously, as a department chair, a practicing physician, educator, a researcher, and a serial entrepreneur engaged in university technology transfer.