Team
The faculty and staff of CEP include clinicians, nurses, administrators, librarians, research analysts, health economists, and a biostatistician. Our multidisciplinary team is well integrated throughout UPHS and within the University setting; the team strategically attends P&T committees, CEQI committees, hospital alliances, technology committees, and more. We also collaborate worldwide with affiliate EPCs through partnerships with Cochrane and AHRQ. Get to know more about our team and their expertise below!
CEP Team
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Read More about Ryan Greysen, MD
Ryan Greysen, MD
Executive Director
ryan.greysen@pennmedicine.upenn.edu
Dr. Greysen is a practicing hospitalist within both Penn Medicine and the Veterans Affairs health systems and is Chief of the Section of Hospital Medicine at the University of Pennsylvania. He is also a health services researcher with funding from the NIH (National Institute on Aging and National Heart Lung and Blood Institute) as well as the VA. His research focuses on improving systems of care and the quality of care, particularly for vulnerable populations such as older adults, Veterans, and families from under-resourced neighborhoods.
Dr. Greysen leads the development of CEP’s strategic vision and acts as CEP’s liaison to many groups within Penn Medicine including the Chief Medical Officers and Chief Nursing Officers of Penn Medicine hospitals. He also works closely with clinical groups across Penn Medicine (Hospital Medicine and many other specialties) to develop strategies for integrating evidence into these practices. Overall, these efforts aim to reduce the gap between knowing and doing to improve the patient experience and achieve the best outcomes of care at Penn Medicine.
Dr. Greysen completed undergraduate, medical, and graduate degrees at the University of Texas, and trained in Primary Care Internal Medicine Residency Program at George Washington University and the RWJ Clinical Scholars Program at Yale before starting his academic career as a hospitalist at UCSF in 2011. In 2016, he was recruited to Penn as the Chief of Hospital Medicine and, in 2019, he was appointed Executive Director of CEP.
Ryan is a competitive cyclist and avid linguist (fluent in Italian).
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Read More about Nikhil Mull, MD
Nikhil Mull, MD
Medical Director
Nikhil Mull, MD Website
Dr. Nikhil Mull is a hospitalist, or physician that specializes in managing the care of patients within the hospital. Dr. Mull practices at the Hospital of University of Pennsylvania. He joined UPHS in 2012 and currently serves as an Associate Professor of Clinical Medicine. His interests include evidence-based medicine and high value care.
Dr. Mull earned his medical degree from Drexel University in Philadelphia and completed a medical residency at Brown University.
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Read More about Matthew Mitchell, PhD
Matthew Mitchell, PhD
Senior Research Analyst
mdmitchell@uphs.upenn.edu
Dr. Mitchell joined CEP in 2007 after spending 11 years in the health technology assessment group at ECRI. Since then he has completed more than 250 reports for CEP. He has been responsible for development of many of our evidence products and appraisal tools, and maintains CEP’s methods documentation. Dr. Mitchell also created the CEP Practicum and is the lead instructor for the program. He has led CEP’s response to the pandemic, developing our Rapid Guidance Summary product and leading a team of medical students who researched and wrote dozens of reports in the spring and summer of 2020.
Dr. Mitchell’s research career began in the laboratories of Nobel laureate Paul Lauterbur and continued at the Pendergrass Radiology Labs of the University of Pennsylvania. There he conducted the first comparative effectiveness study of MRI, and subsequently earned a doctorate in biophysics from the Perelman School of Medicine. His research interests are in methods for the evaluation of diagnostic tests and evidence quality appraisal.
Dr. Mitchell is a member of the Hospital HTA steering committee of Health Technology Assessment International, and serves on the editorial board of the International Journal of Hospital HTA.
Matt played on the Penn hockey team while in graduate school, and is still active as a hockey referee. He also is an Ivy League and national-level fencing referee.
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Brian Leas, MS, MA
Senior Research Analyst
Brian Leas, MS, MA
Senior Research Analyst
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Read More about Julie Fricke, PhD
Julie Fricke, PhD
Research Analyst
Julie.Fricke@pennmedicine.upenn.edu
Dr. Julie Fricke joined CEP as a research analyst in 2020 after working as a systematic review analyst at Source Health Economics in Oxford, UK. Since then, she has completed multiple evidence reports for CEP that have influenced institutional decision-making. She has also taken on a supervisory role to medical students and aims to connect CEP with researchers and related groups/departments within the University setting.
Julie’s research career started after she finished her MSc in Evidence-based Social Intervention at Oxford University and was awarded a fellowship to work in the Health Economics Research Group (HERG) at Brunel University London. After the fellowship, she began her doctorate at the University of Colorado Denver in Health and Behavioral Sciences. While completing the degree, she held multiple research positions, such as a methodologist in the Department of Epidemiology at Johns Hopkins University, that provided rigorous and diverse training in review methodology. Apart from evidence synthesis, her research interests include health disparities and behavior change, with a particular focus on sexual minority populations.
Julie ran track and field at the University of Maryland and is still an avid runner, although her knees would appreciate it if she cycled and swam much more often instead!
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Read More about Emilia Flores, PhD, RNEmilia Flores, PhD, RN
Associate Director, Knowledge Translation and Implementation, PennPathways Program
Emilia Flores, PhD, RN
Associate Director, Knowledge Translation and Implementation, PennPathways Program
Emilia J. Flores, PhD, RN, is a member of the Penn Medicine Center for Evidence-based Practice (CEP). In her role at CEP, Dr. Flores directs evidence translation initiatives, including the PennPathways Program, and works closely with clinicians and staff from quality, operations, and clinical informatics to facilitate the development, implementation, and evaluation of clinical evidence translation interventions throughout the University of Pennsylvania Health System. Her research interests are in identifying methods to promote the uptake of evidence into practice, in particular, through the use of electronic clinical decision support tools, and in designing evidence-based interventions to improve health equity.
Dr. Flores received her PhD, MS, and BSN from the University of Pennsylvania School of Nursing and a BS in Industrial Engineering and Management Science, with a focus on Technology and Systems Design, from Stanford University. Dr. Flores completed a fellowship with the Penn Medicine Center for Health Care Innovation and has extensive education and expertise in Implementation Science and Behavioral Economics. Prior to pursuing her training at Penn, Dr. Flores held a variety of roles in management and information technology consulting and in the medical device industry.
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Read More about Shazia Siddique, MD, MSHPShazia Siddique, MD, MSHP
Associate Director for Scientific Research
Email Shazia Siddique, MD, MSHP
Shazia Siddique, MD, MSHP
Associate Director for Scientific Research
shazia.siddique@pennmedicine.upenn.edu
Dr. Siddique joined CEP in 2018 as liaison to the Hospital of the University of Pennsylvania, and transitioned to Associate Director for Scientific Research in 2020. She primarily conducts evidence synthesis as part of the Penn-ECRI Evidence-based Practice Center, and has served as co-Principal Investigator and co-Investigator for several policy-related contracts through the Agency for Healthcare Research & Quality. Clinically, she is a gastroenterologist and sees patients at the Perelman Center for Advanced Medicine and at the Hospital of the University of Pennsylvania. Dr. Siddique also works on GI-related evidence reports and PennPathways for the health systems.
Dr. Siddique has expertise in evidence synthesis, guideline development, and implementation science. She completed her Master's in Health Policy Research at the University of Pennsylvania. She has been involved with the Clinical Guidelines Committee for the American Gastroenterological Association, received training in GRADE methodology, and authored numerous systematic reviews and guidelines in this capacity. She also completed a two-year fellowship through the Center for Healthcare Improvement and Patient Safety (CHIPS) at the University of Pennsylvania, including course work in patient safety, quality improvement, and implementation science. She serves as Inpatient Director for Quality & Safety for the Hospital of the University of Pennsylvania's GI Gut consult service.
Dr. Siddique received her medical degree from Robert Wood Johnson Medical School, completed internal medicine residency at the Johns Hopkins Hospital, and gastroenterology fellowship at the University of Pennsylvania. She is currently Assistant Professor of Medicine in the Division of Gastroenterology, and Senior Fellow for the Leonard Davis Institute for Health Economics.
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Brian S. Li
Research Analyst Intern
Brian S. Li
Research Analyst Intern
Clinical Liaisons
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Joel Betesh, MD, FACP
Medical Director of Clinical Informatics - PAH and CCA Liaison
Joel Betesh, MD, FACP
Medical Director of Clinical Informatics - PAH and CCA Liaison
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David R. Goldman MD, FACP
Emeritus Associate Professor of Medicine - CPUP Primary Care Liaison
David R. Goldman MD, FACP
Emeritus Associate Professor of Medicine - CPUP Primary Care Liaison
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Sara Holland, DNP, RN
Director of Clinical Quality CEQI, Liaison
Sara Holland, DNP, RN
Director of Clinical Quality CEQI, Liaison
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Jesse Raiten, MD
Anesthesia and Critical Care - PPMC Liaison
Jesse Raiten, MD
Anesthesia and Critical Care - PPMC Liaison
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Christian Burchill, RN
Director of Nursing Research and Science - LGH Liaison
Christian Burchill, RN
Director of Nursing Research and Science - LGH Liaison
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Rebecca Clark, RN
Nurse Scientist - PAH Liaison
Rebecca Clark, RN
Nurse Scientist - PAH Liaison
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Robin M. Hermann MSN, RN, CCRP
Associate Director, Abramson Family Center for Nursing Excellence Hospital of the University of Pennsylvania - HUP Liaison
Robin M. Hermann MSN, RN, CCRP
Associate Director, Abramson Family Center for Nursing Excellence Hospital of the University of Pennsylvania - HUP Liaison
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Rebecca L. Trotta, PhD, RN
Director, Nursing Research and Science Director, Geriatric Nursing Hospital of the University of Pennsylvania - HUP Liaison
Rebecca L. Trotta, PhD, RN
Director, Nursing Research and Science Director, Geriatric Nursing Hospital of the University of Pennsylvania - HUP Liaison
Holman Biotech Commons, School of Nursing Liaison
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Sherry Morgan, PhD, MLS, RN
Clinical and Graduate Research Liaison
Sherry Morgan, PhD, MLS, RN
Clinical and Graduate Research Liaison
Methodologists
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Jalpa A. Doshi, PhD
Associate Professor of Medicine Director, CEP Economic Evaluations Unit
Jalpa A. Doshi, PhD
Associate Professor of Medicine Director, CEP Economic Evaluations Unit
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Read More about Michael Harhay, PhD, MPHMichael Harhay, PhD, MPH
Assistant Professor of Epidemiology and Assistant Professor of Medicine, PSOM
Email Michael Harhay, PhD, MPH
Michael Harhay, PhD, MPH
Assistant Professor of Epidemiology and Assistant Professor of Medicine, PSOM
mharhay@pennmedicine.upenn.edu
Dr. Michael Harhay is an assistant professor at the University of Pennsylvania Perelman School of Medicine. Michael joined the CEP in 2020 and contributes to the design and analysis of several CEP projects. As a researcher, he leads a research program that spans several topics in medical statistics and clinical epidemiology, with a focus on improving clinical studies for individuals with critical or advanced illnesses such as sepsis, respiratory failure, and end-stage organ disease. He is particularly interested in the design and analysis of randomized trials in these patient populations. He is the author of more than 170 scientific publications and has received multiple research and teaching awards. He holds a PhD in clinical epidemiology and master degrees in statistics, public health, demography, and bioethics, all from the University of Pennsylvania. Outside of work, you will find Michael cooking, swimming, doing yoga, or with his family.
