Pesta received a medical degree from Wayne State University School of Medicine in Detroit, MI. She completed her residency at Fletcher Allen Health Care, University of Vermont in Burlington, VT. Pesta is board certified in internal medicine. She was the 2015 recipient of the Arnold P. Gold Foundation Humanism and Excellence in Teaching award and 2015 recipient of the Richard Bouchard Primary Care Excellence award from the University of Vermont. Her clinical interests include preventive medicine and cancer screening.