Our Leadership Team

Our compassion for patients drives our passion for science 

John Maslowski
Chief Executive Officer

Mary Spellman, MD, FAAD
Chief Medical Officer

Greg Wujek
Chief Commercial Officer

Babar Ghias
Chief Operating Officer

Sean Buckley
Chief Business Officer

Jeff Aronin
Castle Creek Biosciences Founder and Chairman
Paragon Biosciences Founder, Chairman and CEO