Full-Time Faculty

Ryan O'Malley

Assistant Professor
(714) 221-6209

For more than eight years, Professor O’Malley had the privilege to work in multiple areas of critical care, including on the intensive care unit, the cardiac care unit, and the cardiac surgery unit. He has worked in community hospitals and large teaching facilities, and his certifications include critical care nursing (CCRN), cardiac medicine (CMC), and clinical nurse leader (CNL). Professor O’Malley also works as a nationally certified adult nurse practitioner, and currently specializes in...


Los Angeles Valley College, AA in Spanish 2009, California State University, Fullerton BSN with a minor in Spanish 2011, California State University, Long Beach, MSN NP 2015, University of Alabama, DNP, 2020


Ambulatory medicine, Critical Care medicine, Internal medicine

Chukwuka Okekenta


Dr. Chuka Okekenta (he/him/his), otherwise called Dr. O by his students, is a registered nurse with a terminal degree from Chamberlain University. He has functioned in a variety of clinical and academic settings including intensive care units, dialysis, stepdown, home health, quality improvement, and colleges. Some of his notable works include design and implementation of healthcare quality improvement processes. His hobbies and interests cover sports and jokes/comedy. Basketball and football...


Chamberlain University, DNP, 2017


Critical Care, Quality Improvement, Healthcare Simulation

Paul Ortiz

(415) 422-8323

Paul is a passionate nurse educator who truly sees the value in all of his nursing students. He is an advocate for breaking down barriers to access to higher education and believes that students should have a safe, open and supportive environment in which to come into the profession of nursing. He loves working with students to develop their critical thinking skills as well as the tools necessary to be a successful professional nurse.


DNP, Samuel Merritt University, 2021, MSN, Samuel Merritt University, 2019, BSN, California State University, 2016, ADN, Evergreen Valley College, 2011, AA, San Jose City College, 2009


Advanced Practice, Emergency Care, Pediatrics

Susan Prion EdD, RN, CNE, CHSE

Professor; Associate Dean — Nursing
(415) 422-6936

Susan Prion, EdD, RN, CNE, CHSE is the associate dean of and a professor in the nursing department. She holds baccalaureate degrees in biology and chemistry from Muskingum College and a BS in nursing from Case Western Reserve University. She has a master’s degree in nursing from the University of California San Francisco and an MEd in instructional technology from San Jose State University. Professor Prion also holds a doctorate in curriculum and instruction. She is actively engaged in research...


BS, Muskingum College, New Concord, Ohio, BS Nursing, Case Wester Reserve University, Cleveland, Ohio, MS Nursing, University of California San Francisco, San Francisco, California, MEd, Instructional Technology, San Jose State University, San Jose, California, EdD Curriculum and Instruction, University of San Francisco, San Francisco, California


Simulation, Instructional technology, Multimedia

Christina Purpora

Associate Professor
(415) 422-2021

Christina Purpora has been an associate professor in the School of Nursing and Health Professions since 2011. Her primary areas of teaching are applied assessment and nursing fundamentals in the traditional undergraduate nursing program, and her professional experience includes 30 years of hospital nursing. Her clinical expertise is in medical-surgical and critical care nursing of the adult and older adult. Dr. Purpora’s program of research focuses on antecedents, consequences, and mitigation...


Ph.D., Nursing, University of California, San Francisco (UCSF), MS, Nursing (nursing education focus), University of Hartford, West Hartford, Connecticut, BS, Nursing, Regis University, Denver, Colorado , AS, Nursing, Ventura College, Ventura, California , Diploma, Practical Nursing, Thompson School for Practical Nurses, Brattleboro, Vermont


Nursing, Care of the adult and older adult

Trinette Radasa DNP, ACNS-BC, FNP-BC, PMHNP-BC

Assistant Professor, Director Nurse Practitioner Programs

Dr. Radasa graduated from New Mexico State University with a BSN in 1999 and an MSN in 2002. Her MSN track was as a Medical-Surgical Clinical Nurse Specialist. Between 2011 and 2016 she attended University of Texas at El Paso (UTEP), where she received first her Post Master's Certificate in the FNP, then a Doctor of Nursing Practice (DNP) degree and a second Post-Masters Certificate in Psychiatric Mental Health Nurse Practitioner. Dr. Radasa has taught in the BSN & MSN programs at New...


Post-Masters Certificate Psychiatric Mental Health Nurse Practitioner, New Mexico State University, 2016, Doctorate Nursing Practice, University of Texas at El Paso, 2015, Post-Masters Certificate Family Nurse Practitioner, University of Texas at El Paso, 2011, PhD Nursing (ABD), University of New Mexico, 2010, Master of Science Nursing, New Mexico State University, 2002, Bachelor of Science Nursing, New Mexico State University, 1999

Annette Regan

Assistant Professor; Co-Director of the Community Public Health Practice Concentration, Orange County

Dr. Regan is a perinatal and pediatric infectious disease epidemiologist with over 14 years of experience leading epidemiologic research and public health practice. She completed an MPH in epidemiology at the Rollins School of Public Health, Emory University in 2006, and a PhD in infectious diseases at the University of Western Australia in 2016. She has previously worked as an epidemiologist for state and federal public health agencies, including the US Centers for Disease Control and...


University of Western Australia, PhD in Infectious Diseases, 2016, University of Western Australia, Masters of Infectious Diseases, 2016, Emory University, MPH in Epidemiology, 2006, University of Florida, BSc in Psychology, 2004


Epidemiology, Public Health Surveillance, Infectious Disease Prevention & Control, Survey Development & Data Analysis, Analysis of Administrative Health Data

Stefan Rowniak

Assistant Professor
(415) 422-4702

Dr. Stefan Rowniak has been teaching at USF since 2011 after a long career as a Registered Nurse and a Family Nurse Practitioner. He started his nursing career with a BSN from the University of San Francisco in 1985 when the HIV/AIDS epidemic was decimating the local community. Subsequently, he joined the frontlines of the fight against the AIDS epidemic by arranging his senior preceptorship at the newly opened “AIDS Ward” at San Francisco General Hospital. After graduating with his BSN, he...


Post-Doctoral Student, University of California, San Francisco, PhD, Nursing, University of California, San Francisco, MSN, Family Nurse Practitioner, University of California, San Francisco, BS, Nursing, SF State University, San Francisco, Certificate, Alcohol Studies, Seattle University, Seattle , BA, Anthropology, University of Washington, Seattle

Lisa Sabatini

Assistant Professor
(415) 422-6348

Lisa is a proud triple USF Don earning her BSN, MSN and DNP from USF SONHP. She has over 38 years of healthcare experience in clinical, education, and leadership. She is active in the USF Alumni Association and is an active member of many nursing organizations. She was instrumental in establishing simulation at SONHP and has spoken locally, regionally, and nationally on simulation.


University of San Francisco, SONHP, DNP, 2015, University of San Francisco, SONHP, MSN, 2008, University of San Francisco, SONHP, BSN, 1983


Simulation , Medical-surgical nursing , Public health nursing, Leadership

Prabjot (Jodie) Sandhu DNP, FNP-C, PA-C, CNL

Assistant Professor
(415) 422-4244

Dr. Jodie Sandhu, is Director of Clinical Training for the NP Programs, and Assistant Professor in the FNP-DNP Department. Dr. Sandhu is a Family Nurse Practitioner, with clinical experience in Family Medicine, Urgent Care, Women's Health, Infertility, and Sleep Medicine. She has been involved in patient care across the lifespan for over 16 years. Her past and current clinical experiences provide a strong foundation for the integration of education and practice for all nursing students. Dr....


University of San Francisco, DNP, 2016, University of San Francisco, MSN-CNL, 2010, Jacksonville University, Florida, BSN, 2006, Stanford University, Family Medicine Program, NP/PA Certificate, 2003


Family Nurse Practitioner, Student Publications, Multilingual: Spanish, Hindi, Punjabi, English, Primary Care Chronic Disease, Women's Health, Preventative Health Promotion