Our People

Immunize.org is an award-winning 501(c)(3) nonprofit organization, headquartered in Saint Paul, Minnesota. We have a more than 30 year history of working tirelessly to make sure that healthcare professionals and the public are up to date on every aspect of vaccination. The strength of Immunize.org is in our dedicated professionals of varied backgrounds who work either as full-time staff or independent consultants.

Our Staff

Kelly L. Moore, MD, MPH

President and Chief Executive Officer

Litjen (L.J) Tan, MS, PhD

Chief Policy and Partnerships Officer

Co-chair, National Adult and Influenza Immunization Summit

David Sanders, MD, MS

Chief Health Informatics Officer

Casey Pauly

Director of Business Operations

Julie Murphy, MA

Director of Development

Robin VanOss

Senior Program Manager

Kayla Ohlde

Operations Administrator

Consultants and Contractors

Carolyn B. Bridges, MD, FACP

Director for Adult Immunization

John D. Grabenstein, RPh, PhD

Director for Scientific Communications

Sharon G. Humiston, MD, MPH, FAAP

Director for Research

Diane C. Peterson

Director for Immunization Projects

Laurel Wood, MPA

Director for Public Health

Iyabode Beysolow, MD, MPH, FAAP

Physician Consultant

Jane R. Zucker, MD, MPH

Physician Consultant

Taryn Chapman, MS


Marian Deegan, JD

Writer and Editor

Rebecca Dessonville

Digital Consulting/Web Developer

Lisa Jacques-Carroll, MA

Project Consultant

Mary Beth Koslap-Petraco, DNP, PNP-BC, CPNP, FAANP

Nurse Consultant

Courtnay Londo, MA


Payton Rigert, MPH

NAIIS Project Manager

Angela K. Shen, ScD, MPH

Policy and Public Health Consultant

Patricia Vranesich, RN, BSN

Public Health Nurse Consultant

Les Witherspoon

IT Consultant

Our Founder

Deborah L. Wexler, MD

Founder and Executive Director Emerita

Learn more about our founder

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