Dr. Elena MZ Ollis is a board-certified Psychiatric Mental Health Nurse Practitioner (DNP,  PMHNP-BC). She earned her BSN in nursing with a minor in psychology from Seton Hall  University. She conducted skilled nursing home visits before working as a psychiatric  registered nurse at Princeton House, an inpatient psychiatric facility. Elena earned her  Master's in Nursing with a PMHNP specialty from Rutgers University, the State University of  New Jersey, in 2012. In May 2026, Elena earned her Doctor of Nursing Practice (DNP)  degree from the University of Colorado, which deepened her research and quality  improvement project skills and enhanced her academic and administrative leadership  partnerships. Her QI project focused on aiding novice nurse practitioners in transitioning  into practice by improving their confidence and competence through a mentorship  intervention, with successful outcomes. 

Dr. Ollis has been practicing as a PMHNP for the past 14 years across a variety of settings.  These include nursing care facilities, where she served as a PMHNP liaison and consultant;  an outpatient private practice; and a nonprofit outpatient psychiatric clinic, where she  participated in an interdisciplinary NIH initiative focused on treating early-onset psychosis  in adolescents and young adults. Over the past 6 years, Elena has been a member of the  PVCHC provider team. As Peak Vista’s first PMHNP, Elena lent her expertise to numerous  primary care providers, helped open this organization’s first psychiatric clinic, served as a  clinical preceptor to multiple PMHNP students, provided didactic education to Family  Nurse Practitioner Fellows, and has lectured at the University of Colorado, Colorado  Springs. At the beginning of 2024, Elena transitioned to the role of Attending Faculty for the  PMHNP Fellowship, another first for Peak Vista. 

Throughout her career, Elena’s passion and professional drive have consistently focused  on providing care to underserved populations in communities where care is most needed  and least available. Elena’s Rogerian-style empathetic listening and her strong belief in  evidence-based, shared decision-making practices have kept her engaged and passionate  about her craft. 

Her ultimate goal is to drive positive, meaningful change in academic and clinical settings  to improve patient care and outcomes. 

When not engaged in new professional ventures or further education, Elena enjoys playing the violin, reading, hiking, biking, and spending time with her husband and her daughter.