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Managerial Staff


Julianne S. Perretta, MSEd, RRT-NPS, CHSE

Manager of the Manikin and Procedural Skills Lead Simulation Educator

Julianne Perretta MSEd, RRT-NPS, CHSE is the Manager of the Manikin and Procedural Skills and the Lead Simulation Educator for the Johns Hopkins Medicine Simulation Center. Julianne has a Baccalaureate Degree in Respiratory Therapy from the Indiana University of Pennsylvania/West Penn Hospital School of Respiratory Care, and a Master of Science degree in Education from the Johns Hopkins University with focuses in Adult Learning and Multimedia Design for Internet-based Instruction.

Julianne has had previous experience as a neonatal respiratory therapist, respiratory care educator, and co-chair of the respiratory care services performance improvement committee for the Johns Hopkins Hospital. She has been certified by the Society for Simulation in Healthcare as Healthcare Simulation Educator. She is an adjunct faculty in Towson University’s College of Health Professions. Julianne is also the current chair of the AARC’s Simulation Roundtable.

Julianne’s educational responsibilities at the Johns Hopkins Medicine Simulation include needs assessment for the manikin and procedural skills programs, manikin-based curriculum design, programming and testing scenarios, and training simulation users on high-quality curriculum design and debriefing skills. She is responsible for quality improvement and curriculum assessment for all manikin-based simulation.

Julianne’s current research interests include: improving the quality of resuscitation training, the use of patient simulation for hospital staff training, and advancing the quality of respiratory and mechanical ventilation simulation.

Carol Fleishman

Carol Fleishman, PhD, CAS-Ed, PE, CHSE

Academic Program Manager, SP & Teaching Associate Programs

 Carol Fleishman develops, designs, and delivers Standardized Patient Program activities for teaching and assessing medical students, residents, and fellows. She recruits and trains standardized patients to portray patients for simulations of clinician and patient interactions. Before coming to Johns Hopkins, Carol was the Standardized Patient Educator at Maine Medical Center, Portland, Maine. Carol has worked in the field of adult learning and development for twenty-five years, including the development of workplace educational programs, and teaching at universities and colleges. Carol graduated from University of Southern Maine with a Post-Masters Certificate of Advanced Studies in Adult Learning, University of Wisconsin with an MS degree in Chemical Engineering, and Georgia Institute of Technology with a BS degree in Chemical Engineering. She is a State of Maine Professional Engineer and is a candidate in the PhD in Education program at Lesley University, Cambridge, MA.

Carol was a member of the first cohort to become a Certified Healthcare Simulation Educator through the SSH certification program and she is a co-chair of the Mid-Atlantic Consortium of Medical Schools. She was a coauthor of a poster presented at the Osler Center Day held October 2013, which was titled, Always Clear and Caring: Creating and evaluating an education program in patient-centered communication.  Carol participated in a panel discussion at the ASPE 2013 conference, June 2013, Programming for Teens: Medical Career Exploration for Junior High and High School Students. Carol coauthored the article, How Do Gender and Anxiety Affect Students’ Self-Assessment and Actual Performance on a High-Stakes Clinical Skills Examination? published in Academic Medicine, January 2013. She presented SP oral feedback for medical students, residents, and fellows: Guided reflections at the SPSim 2012 Swiss Conference on Standardized Patients and Simulation in Health Care, Lausanne, Switzerland, November 2012. Carol was a recipient of a Tufts University School of Medicine Innovations in Education Grant in 2009.

 Dru Holehan, BS

Administrative Manager

Dru Holehan has twenty years of experience as an integral member of the Johns Hopkins administrative staff.  During her tenure she has been instrumental in the development and implementation of several innovative and exciting programs, the most recent of which is the expansion of the state of the art Johns Hopkins Medicine Simulation Center.  As the Administrative Manager, Ms. Holehan is responsible for much of the day-to-day operations of the Center including, but not limited to staffing, promotion, acquisition of high-fidelity medical training equipment, financial reporting and fulfilling Johns Hopkins' commitment to education, research, and patient safety. 

Andrew Stella

Andrew Stella, MS, MA

Multimedia Manager

Andrew Stella has more than a decade of experience working with multimedia technology in the educational context.  Professionally, he has worked extensively within the Johns Hopkins University system, as an e-learning multimedia production specialist at the Bloomberg School of Public Health, as the Digital Audio Specialist at the Digital Media Center on the Homewood campus, and as an adjunct faculty member of the Peabody Institute.  Andrew’s educational background is focused in music and media production, including a B.S. in Recording Industry from Middle Tennessee State University, and a M.A. in Recording and Acoustics from the Peabody Institute of the Johns Hopkins University.  Additionally, he has received a research-oriented master’s degree in Sound and Music Computing from Universitat Pompeu Fabra in Barcelona, Spain.  Andrew’s research and professional interests involve exploring the intersection of technology, media, art and education.