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Nutrition Department

Our Staff

Management Staff

  • David Folio, MS, RD: Chief, Nutrition Department
  • Anita Bailey, MS, RD: Section Chief, Food Services
  • Madeline Michael, MPH, RD: Section Chief, Clinical Nutrition Services
  • Merel Kozlosky, MS, RD: Dietetic Internship Director and Supervisory Metabolic Dietitian
  • Laura Cramp, RD: Quality Assurance Specialist
  • Sara Turner, MPH, RD: Metabolic Quality Assurance Dietitian

Call Center Staff

For Patient Room Service or food-related concerns, our call center personnel can assist daily from 6:30 a.m. to 6:30 p.m. and can be reached at the patient room service number (301) 451-3663.

Clinical Research Dietitians

Clinical research dietitians are assigned to cover patient care units and protocols related to their individual areas of expertise. It is best to contact the dietitian assigned to your unit or protocol with questions or requests Monday through Friday during normal business hours. In addition, a dietitian is available on-call daily from 7 a.m. to 7 p.m. and can be contacted through the Page Operator at (301) 496-1211.

Our Clinical Research Dietitians are:

  • Amber Courville PhD, RD
    Amber is responsible for the design and implementation of metabolic diets required for obesity-related studies, as well as for conducting research related to the study of lipids and metabolism.

  • Marnie Dobbin, MS, RD, CNSC
    Marnie provides nutrition services for patients with neurological disorders and for oncology patients completing bone marrow transplant, chemotherapy and immunotherapy regimens. She specializes in dietary supplements.

  • Rachael Lopez, MPH, RD, CSO
    Rachael provides nutrition services for oncology and immunotherapy patients. Her special interests include critical care, gastroenterology and pediatrics.

  • Jennifer Myles, MS, RD
    Jennifer provides nutrition services for a wide variety of immunology, oncology, neurology, behavioral, endocrinology and genetics protocols on the pediatric units. She specializes in pediatrics.

  • Merel Kozlosky, MS, RD
    Merel manages the Metabolic Kitchen and is responsible for metabolic diets required for non-obesity-related metabolic studies. She is also the Director of the Dietetic Internship Program.

  • Madeline Michael, MPH, RD
    Madeline manages Clinical Nutrition Services, and also provides nutrition care to pediatric patients enrolled in NIAID clinical trials. Her special interests include pediatric nutrition, nutrition support and information technology.

  • Kelly Ratteree, MPH, RD
    Kelly provides nutrition services for adult and pediatric oncology patients, and for patients with alcohol use disorders. Her interests include behavior health nutrition, nutrition support, and information technology.

  • Megan Schoenfeld, RD
    Megan provides nutrition services for genetics, endocrinology, hepatology, pulmonary, and behavior health patients. Her interests include weight management, nonalcoholic fatty liver disease, and diabetes.

  • Stephan Torres, MS, RD, CNSC
    Stephan provides nutrition services for pediatric oncology patients, as well as all patient populations throughout the Clinical Center as a relief dietitian. His interests include nutrition support.

  • Stacie Townsend, MS, RD, CSP
    Stacie provides nutrition support services for patients on the critical care unit. She also provides care for hematology patients undergoing stem cell transplants.

  • Shanna Yang, MPH, RD, CDE
    Shanna provides metabolic research services for studies involving liver disease, as well as other studies with nutrition education or metabolic diet needs.

  • Kirsten Zambell, PhD, RD
    Kirsten Zambell provides nutrition services for adult patients enrolled in NIAID clinical trials. She is also the Research and Didactic Coordinator for the Dietetic Internship Program.

Clinical and Metabolic Health Technicians

Clinical and metabolic health technicians provide support to patients who require special nutrition assistance due to research or clinical needs. They have advanced training in nutrition and assist with menu selections, nutritional supplements, special diets, patient education and calorie counts. They can also help you contact a staff dietitian.


RD = Registered Dietitian
MPH = Master's degree in Public Health
MS = Master's degree in Science
PhD = Doctorate of Philosophy
CNSC = Certified Nutrition Support Clinician
CSO = Certified Specialist in Oncology nutrition
CSP = Certified Specialist in Pediatric nutrition

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This page last updated on 06/15/2018

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