Professional Bio


  • Ph.D., University of Northern Colorado
  • Pediatric Nurse Practitioner (PNP) Certification, University of Colorado Health Sciences Center
  • M.A., University of Kansas
  • B.S.N. University of California

Professional Memberships

  • Alliance for Clinical Education (ACE), Co-Chair, Elected, 2011-2012
  • Clinical Journal of Oncology Nursing, Editorial Board, Reviewer, Appointed, 2005-present
  • Colorado State Board of Nursing, Chair of Discipline Panel B, Appointed, 2013-2015
  • Colorado State Board of Nursing, Professional Nursing Representative, Board Member, Appointed, July 2010-July 2015
  • Journal of the Association of Pediatric Oncology Nurses, Editorial Board, Senior Reviewer, Appointed, 2005-present
  • Oncology Nursing Society
  • Colorado Nurses Association
  • Sigma Theta Tau
  • Alpha Sigma Nu

Clinical Expertise & Certifications

  • National Board of Pediatric Nurse Practitioners
  • Pediatric Hematology-Oncology

Research & Scholarship

Research Interests:

Pediatric Hematology-Oncology

Recent Presentations:

Cullen, P. (April 11, 2013) Use of Reflection to Foster Professional Development in Nurse Practitioner Students, Western Institute of Nursing : 46th Annual Communicating Nursing Research Conference, Anaheim, CA.

Cullen, P. (June 27, 2012) Functional Status, Behavior, Executive Function and Quality of Life in Children Undergoing Treatment for Standard-Risk Medulloblastoma: The Children’s Oncology Group Experience, 15th International Symposium on Pediatric Neuro-Oncology, Toronto, Canada.

Cullen, P. (May 11, 2012) Keynote Address, 1st Regional Symposium on Nursing Research and Evidence-Based Practice, Swedish Medical Center and Craig Hospital, Denver, CO.

CNS Tumors: A Story of Passion for Saving and Improving Lives and Neurons Through Clinical Trials. Association of Pediatric Hematology-Oncology Nursing 35th Annual Conference, Anaheim, CA, 2011.

Diagnosis, Evaluation, and Follow-Up of Children, Adolescents, and Young Adults with Cancer for the Primary Care Provider. National Nurse Practitioner Symposium, Copper Mountain, CO, 2011.

Research Update: ACNS0331 (StandardRisk Medulloblastoma) and ACNS0221 (Conformal Radiation for Low Grade Glioma). Children's Oncology Group National Meeting, Los Angeles, CA, 2010.

Clinical Trials for Adolescent and Young Adult Patients: Central Nervous System Tumors. Children's Oncology Group and Association of Pediatric Hematology-Oncology Nurses National Meeting, Dallas, TX, 2009.

Functional Status and Quality-of-Life in Chlidren with Central Nervous System Tumors. Children's Oncology Group National Meeting, Dallas, TX, 2009.

Functional Status, Behavioral Adjustments, and Quality-of-Life in Children with CNS Tumors: A Report from the Children's Oncology Group. Nursing Grand Rounds, The Children's Hospital, Denver, CO, 2009.

Advancing Your Nurse Practitioner Career. 33rd National Primary Care Nurse Practitioner Symposium, Keystone, CO, 2008.

Nursing Research: An Overview and Integration of Evidence Based Practice. National Association of Neonatal Nurses, Denver, CO 2008.

Recent Publications:

Sands SA, Zhou T, O'Neil S, Allen J, Cullen P, Kaleita TA, Noll R, Sklar C and Finlay JL (In Press). Long-term follow-up of quality-of-life and neuropsychological functioning of children treated for malignant intracranial gliomas: Children's Oncology Group L991. Journal of Clinical Oncology.

Madden JR, Mowry P, Gao D, Cullen P and Foreman NK (2010). Creative arts therapy improves quality of life for pediatric brain tumor patients receiving outpatient chemotherapy. Journal of Pediatric Oncology Nursing 27: 133-145.

Awards & Recognition

  • Outstanding Doctoral Student, University of Northern Colorado, 2008
  • Outstanding Dissertation Award, University of Northern Colorado, 2008