Hilary Barnes

Hilary Barnes, PhD, NP-C, FAANP

  • Assistant Professor
Media Expertise:
  • Education
  • Health Sciences
  • Nursing

Affiliated Programs


  • PhD, Nursing Science (2013)
    Widener University (PA)
  • MSN, Family Nurse Practitioner (2008)
    Widener University (PA)
  • BSN, Nursing (2005)
    University of Pennsylvania (PA)
  • BA, German-Economics (1997)
    Skidmore College (NY)

About Me

I am a health services researcher and nationally-recognized expert on the nurse practitioner workforce. My work examines the role of the nurse practitioner to improve care delivery and outcomes within the contexts of an evolving healthcare system and policy reform. I am also interested in role transition for the novice nurse practitioner and finding ways to support new nurse practitioners to ensure successful role transition experiences.

I completed an NINR T32 post-doctoral research fellowship in the Center for Health Outcomes and Policy Research at the University of Pennsylvania School of Nursing. I have expertise in secondary data analysis using large data sets, primary data collection, advanced statistical methods, and instrument development. I am is also nationally-certified as a family nurse practitioner.

Media Expertise

  • Nurse practitioner workforce
  • Nurse practitioner role transition
  • Health services research
  • Health policy
  • Health economics


Barnes, H., Faraz Covelli, A., & Rubright, J. D. (2021). Development of the Novice Nurse Practitioner Role Transition Scale: An exploratory factor analysis. Journal of the American Association of Nurse Practitioners. https://doi.org/10.1097/JXX.0000000000000566 (OPEN ACCESS)

Kandrack, R., Barnes, H., & Martsolf, G. (2021). Nurse practitioner scope of practice regulations and nurse practitioner supply. Medical Care Research and Review, 78(3), 208-217. https://doi.org/10.1177/1077558719888424

Cohen, C. C., Barnes, H., Buerhaus, P. I., Clarke, S. P., Donelan, K., Tubbs-Cooley, H. L., & Martsolf, G. R. (2021). Top priorities for the next decade of nursing health services re-search. Nursing Outlook, 69(3), 265-275. https://doi.org/10.1016/j.outlook.2020.12.004

Barnes, H., Martsolf, G. R., McHugh, M. D., & Richards, M. R. (2020). Vertical integration and physician practice labor composition. Medical Care Research and Review. https://doi.org/10.1177/1077558720972596.

Barnes, H., Richards, M. R., Martsolf, G. R., Nikpay, S. S., & McHugh, M. R. (2020). Association between physician practice Medicaid acceptance and employing nurse practitioners and physician assistants: A longitudinal analysis.
Health Care Management Review. https://doi.org/10.1097/HMR.0000000000000291.

Barnes, H., & Novosel, L. M. (2018). A scoping review of nurse practitioner workforce data: Review two of a four-part series on critical topics identified by the 2015 Research Agenda Roundtable. Journal of the American Association of Nurse Practitioners, 30, 685-695. https://doi.org/10.1097/JXX.0000000000000069

Barnes, H., Richards, M. R., McHugh, M. D., & Martsolf, G. R. (2018). Rural and non-rural primary care physician practices increasingly rely on nurse practitioners. Health Affairs, 37, 908-914. https://doi.org/10.1377/hlthaff.2017.1158

Martsolf, G. R, Barnes, H., Richards, M. R., Ray, K. N., Brom, H. & McHugh, M. D. (2018). Employment of advanced practice clinicians in physician practices. JAMA Internal Medicine, 178, 988-900. https://doi.org/10.1001/jamainternmed.2018.1515

Barnes, H., Maier, C., Altares Sarik, D., Germack, H.D., Aiken, L.H., & McHugh, M.D. (2017). Effects of regulation and payment policies on nurse practitioners' clinical practices. Medical Care Research and Review, 74, 431-451. https://doi.org/10.1177/1077558716649109

Barnes, H., Aiken, L.H., & Villarruel, A.M. (2016). Quality and safety of nurse practitioner care: The case for full practice authority in Pennsylvania. Pennsylvania Nurse, 71(4), 12-15.

Barnes, H. (2015). Nurse practitioner role transition: A concept analysis. Nursing Forum, 50,
137-146. https://doi.org/10.1111/nuf.12078

Barnes, H. (2015). Exploring the factors that influence nurse practitioner role transition. The
Journal for Nurse Practitioners, 11, 178-183. https://doi.org/10.1016/j.nurpra.2014.11.004


Professional Affiliations & Memberships

AcademyHealth, American Association of Nurse Practitioners, American Nurses Association, Eastern Nursing Research Society, National League for Nursing, National Organization of Nurse Practitioner Faculties, Sigma Theta Tau International, Eta Beta Chapter, Widener University


  • AANP Open Access Award, American Association for Nurse Practitioners (2021)
  • Fellow, American Association of Nurse Practitioners (2020)
  • Excellence in Teaching Award (nomination), University of Delaware (2020)