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Denise Johnstone, NP-BC

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Denise Johnstone NP-BC Denise Johnstone NP-BC


  • Clinical Director, Bariatric Surgery Program | Senior Nurse Practitioner
Medical Biography
Clinical Interests
  • Surgical Oncology
  • Bariatric Surgery
  • General Surgery
  • Medical School
    • University of Pennsylvania
Board Certified
  • American Nurses Association Credentialing Center
  • American Society for Metabolic and Bariatric Surgery

Denise A. Johnstone, NP-BC, is the clinical director of the Bariatric Surgery Program and Senior Nurse Practitioner in The GW Medical Faculty Associates Department of General Surgery.

Ms. Johnstone received her Bachelor of Science in nursing from Thomas Jefferson University and her Advanced Practice Master of Science in Nursing from The University of Pennsylvania. She is board-certified as an Adult/Pediatric Nurse Practitioner and as a Certified Bariatric Nurse. Prior to joining The GW Medical Faculty Associates in 2001, Ms. Johnstone was in private practice in Pennsylvania.

Ms. Johnstone's clinical interest and expertise are bariatric surgery, surgical oncology and general surgery. She has played a key role in the development of the MFA's Bariatric Surgery Program. In 2008, the program received national certification as a Center of Excellence. Ms. Johnstone is seen as an expert in her field and has presented her work to numerous national and regional clinical conferences.