Our Team We are a team of healthcare providers who offer comprehensive medical and psychosocial care to adolescents, young adults and their families. Our Specialists Brett W. Robbins, M.D., Chief Katherine B. Greenberg, M.D. Cheryl M. Kodjo, M.D., M.P.H. Richard E. Kreipe, M.D. Elizabeth R. McAnarney, M.D., Chair Emerita, Dept. of Pediatrics Olle Jane Z. Sahler, M.D. David M. Siegel, M.D., M.P.H. Taylor Starr, D.O., M.P.H. Susan M. Yussman, M.D., M.P.H. Nurse Practitioner Suzanne Bumpus, M.S., R.N., F.N.P.-C. Clinical Nutrition Specialists Audra Stickney, R.D. Betsy Crumb, M.S., R.D. Social Work Heather Jones, M.S.W.