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Network of Dedicated Enrollment Sites (NODES)

The Network of Dedicated Enrollment Sites (NODES) is a consortium of VA medical centers that have teams, nodes, in place dedicated to conducting CSP studies to enhance the overall performance, compliance, and management of CSP multi-site research. In addition, NODES work together to share best practices and provide local insights to CSP Central Office and CSP Centers on study design and related considerations that can help with study management and conduct. Further, each node helps to create a stronger local community of clinical research.

The 23 NODES and their Directors, selected through a competitive scientific review, are:

  • Ann Arbor – Jeffrey Curtis, MD
  • Atlanta – Lawrence S. Phillips, MD, Mary Rhee, MD, MSCR
  • Aurora – Neda Rasouli, MD, Gregory Schwartz, MD, PhD
  • Boston – Terry Keane, PhD, Pantel Vokonas, MD
  • Bronx – Sheldon T. Brown, MD, Susan E. Bates, MD
  • Cleveland – Curtis Donskey, MD
  • Dallas – Eleanor D. Lederer, MD, FASN, Geetha Shivakumar, MD, MSCS
  • Greater Los Angeles – Tannaz Moin, MD, MBA, MSHS, Debika Bhattacharya, MD
  • Hines – David Leehey, MD
  • Houston – Barbara Trautner, MD, PhD
  • Long Beach – Timothy Morgan, MD
  • Madison – Nasia Safdar, MD, PhD, Timothy Juergens, MD
  • Miami – Binu John, MD, Leonardo Tamariz, MD
  • Milwaukee – Jeffrey Whittle, MD, MPH, Elizabeth Gore, MD
  • Minneapolis – Susan Diem, MD, MPH
  • Omaha – James R. O’Dell, MD
  • Palo Alto – Trisha Suppes, MD, PhD, Michael Ostacher, MD, MPH, MMSc
  • Philadelphia – David Oslin, MD, Joshua Baker, MD, MSCE
  • Portland – Merritt Raitt, MD, North Noelck, MD, MPH
  • Puget Sound – Jason A. Dominitz, MD, MHS, Laura C. Feemster, MD, MS
  • Salt Lake City – Jennifer Romesser, PsyD, Jessica A. Walsh, MD
  • San Diego – Sunder Mudaliar, MD, Sanjai Rao, MD
  • West Haven – Mehmet Sofuoglu, MD, PhD, Kathleen Akgun, MD, MS

For more information, contact the Associate Director (NODES), CSP, Marcus Johnson, MPH, MBA, MHA at and/or

Download the following resources:


NODES brochure

VA Women's Health Practice-Based Research Network (VA WH-PBRN), For more information, contact

Questions about the R&D website? Email the Web Team

Any health information on this website is strictly for informational purposes and is not intended as medical advice. It should not be used to diagnose or treat any condition.