Leadership and Administration

Katrina Armstrong, MD
Executive Vice President for Health and Biomedical Sciences
Dean of the Faculties of Health Sciences 
Chief Executive Officer of Columbia University Irving Medical Center
Harold and Margaret Hatch Professor of the University

Chief of Staff to Dr. Armstrong
Jennifer Williamson
jlw61@cumc.columbia.edu

Executive Assistant to Dr. Armstrong
Valerie Perez
officeofkarmstrong@cumc.columbia.edu

James M. McKiernan, MD
Senior Vice Dean for Clinical Affairs
CEO, Columbia Doctors 
John K. Lattimer Professor of Urology

Executive Assistant to Dr. McKiernan
Sanny Deleon
officeofjmckiernan@cumc.columbia.edu

Lorraine Frazier, PhD
Senior Vice President, CUIMC, and Dean, School of Nursing

Dennis Mitchell, DDS, MPH
Senior Vice President, CUIMC, and Dean, College of Dental Medicine

Kathleen Sikkema, PhD
Interim Dean, Mailman School of Public Health

Wil McKoy
Senior Vice President and Chief Financial Officer
Interim Chief Operating Officer 

Kris Davitt
Senior Vice President for Development

Daichi Shimbo, MD
Senior Vice President for Faculty Affairs 

Patrick Burke III
Vice President, Facilities Management, Operations and Planning

Francine Caracappa
Vice President, Finance, and Controller

Ross Frommer
Vice President, Government Affairs

Sandra Harris 
Vice President, Community Affairs & Partnership Engagement

Diana I. Mejia
Vice President, Student and Campus Services

Jim Bossio
Chief Information Officer

Vanita Gowda
Chief Communications Officer

Despina Kontos, PhD
Chief Research Information Officer 

Neil McClure
Chief Human Resources Officer

Angela V. Olinto
Provost of the University