Our Team


Crystal Nyitray, PhD

CEO, Founder, Inventor



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Grace Wei, PhD

COO, Founder


Ronald Martell

Executive Chairman


Scientific Advisory Board

Michael German, MD, PhD                          

Clinical Director, UCSF Diabetes Center

Director, UCSF NIH Diabetes Research Center (DRC)


Matthias Hebrok, PhD 

Chair and Professor, UCSF Diabetes Center


Andy Posselt, MD, PhD

UCSF transplant surgeon

Co-Director,  Pancreatic Islet Cell Transplant Program


Julie Sneddon, PhD

UCSF Assistant Professor


Peter Stock, MD, PhD

Surgical Director,  UCSF Kidney and Pancreas Transplant

Co-Director,  Pancreatic Islet Cell Transplant Program


Gregory L. Szot, MS

Director of UCSF Islet and Cell Transplant Facility


Qizhi Tang, PhD

Director, UCSF Transplantation Research Laboratory


Aaron Tward, MD, PhD

UCSF Surgeon, Assistant Professor