AONL Board of Directors
2025 Board of Directors
President
Deborah Zimmermann, DNP, RN, NEA-BC, FAAN
Chief Executive Officer
DAISY Foundation
Richmond, Va.
President-Elect
Ena Williams, PhD, RN, CENP, FAAN
Senior Vice President/Chief Nursing Officer
Yale New Haven Hospital
New Haven, Conn.
Secretary
Claire M. Zangerle, DNP, MBA, RN, FAAN
Chief Executive Officer
AONL
Chief Nurse Executive, SVP, AHA
American Hospital Association
Chicago
Treasurer
Jacqueline Herd, DNP, NEA-BC, FAONL
Interim Chief Nursing Officer Providence Regional Medical Center Everett Campus
Providence
Peachtree City, Ga.
Region 1
Diane Regan, MSN, RN, NEA-BC
Associate Chief Nursing Officer
Tufts Medicine Lowell General Hospital
Lowell, Mass.
Region 2
Helene M. Burns, DNP, RN, NEA-BC, FAONL
Chief Nurse Executive
AtlantiCare
Berlin, N.J.
Region 3
Tina Mammone, PhD, RN, NEA-BC, FACHE
Chief Nurse Executive
Virginia Commonwealth University Health System
Richmond, Va.
Region 4
Tera L. Gross, DNP, RN, CENP, FACHE
Chief Nursing Officer
Mayo Clinic
Ponte Vedra, Fla.
Region 5
Rachel Culpepper, DNP, RN, CENP
General Medicine Service Line Director
IU Health West Hospital
Avon, Ind.
Region 6
Joel Moore, MSN, RN
Chief Nursing Officer
Genesis Health System
Davenport, Iowa
Region 7
Christi Nguyen, DNP, RN, CENP, FACHE
Associate Chief Nursing Officer of Nurse Excellence
UT Southwestern
Dallas
Region 8
Anthony Watkins, MSN, RN, NE-BC
Clinical Manager
Children's Hospital Colorado
Denver
Region 9
Sylvain "Syl" Trepanier, DNP, RN, CENP, FAONL
SVP, System Chief Nursing Officer
Providence
Renton, Wash.
Appointed Board Member
Crystal Bennett Schiano, DNP, MBA, RN
Clinical Leader
UNC Health
Morrisville, N.C.
Appointed Board Member
Nickolaus Escobedo, DNP, RN, NE-BC
Associate Chief Nursing Officer
Houston Methodist - Cypress
Texas
Appointed Board Member
Karen Drenkard, PhD, RN, NEA-BC, FAAN
President/ Chief Nursing Advisor
Drenkard Healthcare Consulting, LLC/ AARP Public Policy Institute
Fairfax, Va.
Appointed Board Member
Nicole Gruebling, DNP, RN, NEA-BC
Vice President
Vizient
Cedarburg, Wis.
Appointed Board Member
Marie Prothero, PhD, RN, FACHE
Assistant Professor, Undergraduate Program Coordinator
Brigham Young University, College of Nursing
Springville, Utah
At-Large Board Member
Rosanne Raso, DNP, RN, CENP, FAONL
Editor-in-Chief
Nursing Management (Wolters Kluwer)
Staten Island, N.Y.