CEO
Barbara O'Sullivan, MD, MPH
T: (212) 327-7441, (212) 327-8424 (Susan Schienberg)
F: (212) 327-8449
E: osullib@rockefeller.edu

Director and Principal Investigator, CTSA; Physician-in-Chief, Rockefeller University Hospital
Barry Coller, MD
T: (212) 327-7490, (212) 327-7494 (Suzanne Rivera)
F: (212) 327-7493
E: collerb@rockefeller.edu

Co-Director CTSA
James G. Krueger, MD, PhD
T: (212) 327-7730
F: (212) 327-8232
E: kruegej@rockefeller.edu

Director for Science Programs
Robert Darnell, MD, PhD
T: (212) 327-7474 (Jeff Smith)
F: (212) 327-7147
E: darnelr@rockefeller.edu

Administrative Director
Maija Neville, BA, MPH
T: (212) 327-8501
F: (212) 327-8450
E: mneville@rockefeller.edu

Director of Nursing
Melissa Offenhartz, RN, MA
T: (212) 327-8105 (Jean Dooner)
F: (212) 327-8450
E: moffenhart@mail.rockefeller.edu

Director of Bionutrition Research
Suzanne Magnotta, MS, RD
T: (212) 327-8397
F: (212) 327-8350
E: smagnotta@rockefeller.edu

Director of Regulatory Affairs
Cynthia Seidman, MS, RD
T: (212) 327-8812
F: (212) 327-8814
E: seidmac@rockefeller.edu

Manager, Hospital Informatics Core
Edward Barbour, MS
T: (212) 327-7689
F: (212) 327-8561
E: ebarbour@rockefeller.edu

Biostatistician
Knut M. Wittkowski, PhD, DSc
T: (212) 327-7175
F: (212) 327-7157
E: kmw@rockefeller.edu

Manager, Hospital Information Services
Laurent Laor
T: (212) 327-7717
F: (212) 327-8517
E: llaor@rockefeller.edu

Clinical Research Support Officer
Rhonda Kost, MD
T: (212)327-8408
F: (212)327-8450
E: kostr@rockefeller.edu