Bob Cook

About Bob Cook

I am happy to join the team at NovaScan as Chief Operating Officer. NovaScan recently received a CPRIT award to develop and clinically implement MarginScan, our bioelectrical impedance technology, for surgical margin assessment of patients diagnosed with breast cancer. MarginScan is also being validated for use by dermatologic surgeons during Mohs surgery. I have served as Castle\'s Senior Vice President, Research & Development since September 2020. Previous positions at Castle include Vice President, Research & Development from July 2019 to August 2020, Vice President, Medical Affairs and R&D from April 2018 to July 2019, Executive Director, R&D from June 2015 to April 2018, and Manager of Scientific Relations from February 2011 to June 2015. Prior to joining Castle Biosciences I did postdoctoral fellowships at Baylor College of Medicine focused on the genetic regulation of rare ovarian granulosa cell tumors, and at University of San Diego, California evaluating the impact of glycosylation on cell function. My doctoral work at Northwestern University was in the the lab of Teresa K. Woodruff, PhD in the Biochemistry, Molecular Biology and Cellular Biology department as part of the Interdepartmental Biological Sciences (IBiS) program. My research was focused on the structural characteristics of protein hormones important for regulating the reproductive system.Prior to pursuing my doctoral degree I spent five years at Gen-Probe, Inc, using the company’s proprietary nucleic acid amplification technology to design diagnostic assays for hematologic malignancies and solid tumors. I received a B.S. Degree in Molecular Biology from Temple University in Philadelphia. Over my 25 year career I have authored author many medical and scientific publications and am co-inventor on several of Castle Biosciences’ technologies.

Experience

1. Chief Operating Officer

   Novascan

   Feb 2026 — Present

Education

• Northwestern University

  Ph.D. degree, Biochemistry, Molecular Biology, and Cell Biology

  2000 — 2006

• Temple University

  B.S. degree, Molecular Biology

  1989 — 1993