Our Providers

Penn State Hershey Endocrinology and Diabetes consists of highly skilled physicians, researchers, nurses, and clinical staff all dedicated to providing the highest quality of care through a coordinated team effort.

  • Mary Collins, R.N., C.D.E
  • Melissa Ernst, R.N., B.S.N.
  • Theresa Gustafson, M.S., R.D., C.D.E.
  • Brigitte Lenker, R.N., B.S.N.


  • Maura Bucciarelli, D.O.
  • Thomas Gallagher, D.O.
  • Anila Mustafa, M.D.
  • Nini Thomas, M.D.