The National Board of Nutrition Support Certification (NBNSC) is an independent credentialing board established in 1984 by the American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.).

NBNSC Board of Directors



Mary Hise

Baxter Healthcare Corporation

Deerfield, IL


Secretary/Treasurer Director, Pharmacist Certifee Director 

Brian Strang, PharmD

Tucson Medical Center

Tuscon, AZ

Phila Callahan

Chair, CNSC Exam Committee

Phila Challahan RN, CNSC

Christiana Care/Surgical and Critical Care Associates

Newark, DE

Dietitian Certifee Director 

Rebecca Brody, PhD, RD, CNSC

Rutgers School of Health Related Professions

Newark, NJ



Public Member 

Roslyn Dahl

Oley Foundation

Albany, NY



Dietitian Certifee Director 

Marianne Duda, MS, RD, LD/N, CNSC

ThriveRx, a Division of Diplomat

Cincinnati, OH




Pharmacist Certifee Director 

Brenda Gray, PharmD, CNSC, BCNSP

West Coast University School of Pharmacy

North Hollywood, CA


Lillian Harvey BanchikAt-Large Certifee Director 

Lillian Harvey-Banchik, MD, FACS, CNSC

North Shore University Hospital, NYU School of Medicine

New York, NY



Nurse Certifee Director 

Suzanne Lugerner, RN, MS, LN, CNSC, CNS

Medstar Washington Hospital Center

Washington, DC


Physician Certifee Director 

Gerard Mullin, MD, CNSP

John Hopkins University

Baltimore, MD

Dietitian Certifee Director 

Roseann Nasser, MSc, RD, CNSC, FDC

Regina Qu' Appelle Health Region

Regina, SK, Canada


Physician Certifee Director 

Vihas Patel, MD, CNSC, FACS

Bringham and Women's Hospital

Boston, MA



Nurse Certifee Director 

Renay D. Tyler, DNP, RN, ACNP, CNSC

The John Hopkins Hospital

Baltimore, MD


Renee Walker

At-Large Certifee Director

Renee Walker, MS, RD, LD, CNSC, FAND

Michael E. DeBakey VA Medical Center

Houston, TX


Board of Director Biographies