Michael S. 35Broder, MD, MSHS
Michael S. Broder, MD, MSHS, is President and CEO of PHAR. He has more than fifteen years experience in health economic and outcomes research, and is board-certified Obstetrician-Gynecologist. Before joining PHAR, he served as Vice President of Zynx Life Sciences/Cerner Health Insights, a consulting and research firm in Beverly Hills, California. Dr. Broder received his research training in the Robert Wood Johnson Clinical Scholars Program at UCLA and RAND, attended medical school at Case Western Reserve University, and received his undergraduate degree from Harvard University. Dr. Broder has conducted research for industry, specialty societies, and government on a wide range of topics using a diversity of health service research methods. He has led expert panels to develop guidelines relating to use of estrogens, treatment of various cancers, surgical safety, and stroke prevention. He has published more than 50 articles in peer reviewed journals as diverse as The Journal of the American Medical Association, American Journal of Managed Care, Medical Decision Making, Journal of Asthma, and Obstetrics & Gynecology. Dr. Broder is the author of two books and multiple book chapters. He is an Adjunct Professor at the Case Western Reserve School of Medicine, where he serves on the Council to Advance Human Health, and an Assistant Clinical Professor at the David Geffen School of Medicine at UCLA.
73Tanya Bentley, PhD
Senior Director, Health Economics
Tanya Bentley, PhD, is Senior Director, Health Economics. Before coming to PHAR, Dr. Bentley was a researcher at RAND Health. She has extensive experience in cost-effectiveness analysis, decision-analytic modeling, outcomes research, and related theoretical analyses. Her work has included quantifying economic waste in the U.S. healthcare system, developing conceptual and microsimulation models of genetic testing within the U.S., and evaluating various forms of bias in Markov models. She serves on the California Health Benefits Review Program faculty task force, which evaluates the costs, effectiveness, and public health impact of California health benefit mandates. Dr. Bentley is an active member of the Society for Medical Decision Making, serves as the editor-in-chief of the Society’s newsletter, and is also a member of ISPOR and APHA. Dr. Bentley teaches decision analysis at USC. She received her undergraduate degree at Cornell University and both her masters and doctoral degrees in health policy at Harvard University. She was awarded fellowships in health services research both from the Agency for Healthcare Research and Quality (AHRQ) and from the National Cancer Institute (NCI).
Dasha 6Cherepanov, PhD
Director, Outcomes Research
Dasha Cherepanov, PhD is Director, Outcomes Research. She has extensive experience measuring, tracking, and describing health-related quality of life (HRQoL), both nationally and among various subgroups of the United States population (including among individuals with chronic conditions). Much of her research has addressed methodological issues examining the properties of preference-based (utility) measures of HRQoL using psychometric and other advanced statistical methods. She served on the California Health Benefits Review Program faculty task force team that assesses the costs, medical effectiveness, and public health impacts of California health benefit mandates and repeals. Dr. Cherepanov has also been an invited reviewer for a number of peer-reviewed journals, including the American Journal of Public Health, Medical Care, and Quality of Life Research. She received both her undergraduate degree in mathematics and statistics (with distinction) and her doctorate degree in population health from the University of Wisconsin-Madison. She gained further training in health services research and policy analysis during a 2-year postdoctoral fellowship, funded by the Agency for Healthcare Research and Quality, at UCLA and the RAND Corporation.
22Tingjian (Jessie) Yan, PhD,
Director, Health Services Research
Jessie Yan, PhD, is Director, Health Services Research. She has extensive experience conducting observational studies in multiple therapeutic areas and has advanced statistical and programming skills in analyzing large, medical and pharmacy claims databases, Medicare and Medicaid data, electronic health records. Her work has been published in various peer reviewed journals, including Journal of the American Geriatric Society, Neurology, and Stroke. Prior to joining PHAR, Dr. Yan worked as a Senior Researcher at HealthCore, Inc. She received her PhD in Gerontology from the University of Southern California and completed postdoctoral training in Health Services Research at the David Geffen School of Medicine at UCLA.
Jesse 8Ortendahl, MS
Associate Director, Health Economics
Jesse Ortendahl, MS, is Associate Director, Health Economics. He has a background in mathematics and statistics, and he has conducted disease simulation modeling for economic evaluations for over 10 years. He was trained in health policy at the Harvard School of Public Health, with a focus on decision science. Jesse formerly served as a research analyst at the Center for Health Decision Science at the Harvard School of Public Health, conducting grant-funded research primarily on the cost effectiveness of different cervical cancer prevention strategies. Jesse is an analyst and expert programmer, conducting modeling projects in TreeAge and Excel for a variety of clients. He is an active member of the Society for Medical Decision Making.
Ryan Tieu, MS, is a Statistician. He completed his undergraduate degree in Computational and Systems Biology at the University of California, Los Angeles and graduate degree in Biostatistics at the University of Minnesota, Twin Cities. Before joining the PHAR research team, he was a biostatistician for the Regional Research Committee at Kaiser Permanente Southern California department of Research and Evaluation where he was responsible for development and analysis of physician driven research from across the region and from a variety of clinical areas. He has experience dealing with a range of data from electronic medical record to genomic databases, performing analysis in SAS, R, and Python.
Marian Tarbox, MPP, is a Research Assistant. She completed her undergraduate degree at the University of California, Davis and a Masters in Public Policy at Mills College. At PHAR, Marian supports a variety of health services research projects. Prior to joining PHAR, Marian worked as a Grant Assistant for the Behavioral Health Department at The Children’s Clinic of Long Beach, where the focus of her work was increasing department efficacy and quality of care through projects such as the implementation of a clinic-wide private rooming policy.
Sohum Gokhale, MPH, is a Research Assistant. He completed his undergraduate degree in Public Health Sciences at the University of California, Irvine and his graduate degree in Epidemiology at the University of California, Los Angeles. Prior to joining PHAR, Sohum was a research assistant at UC Irvine’s Heart Disease Prevention Program, where his work focused on cardiovascular disease risk related to hypertension. At PHAR, Sohum supports a variety of health services research projects, including developing abstracts, reports, and systematic reviews.