Quincy Samus, PhD

Principal Investigator

Dr. Quincy Samus, an Associate Professor in the Department of Psychiatry and Behavioral Sciences, is an applied gerontologist, trained in epidemiology and health services research. Her research focuses on the care and delivery of health services to older adults and families affected by mental health conditions, primarily dementia, living in community and residential care settings. She directs the Translational Aging Services Core (TASC), whose mission it is to support the conceptualization, evaluation and implementation of innovative evidence-based practices that address the diverse needs of older adults with mental health conditions, their families, and caregivers. She has served as the lead field investigator or Principal Investigator on several large projects including the Maryland Assisted Living Study (MDAL), an epidemiological study of mental health disorders in assisted living (AL); The Maximizing Independence at Home Trial (MIND at Home), a randomized trial to test the efficacy of a novel community-based dementia care coordination model; and the Quality of Mental Health Care in assisted living study. The overarching goal of her work is to improve care quality and outcomes through translation of evidence-based practices to real world settings.


Deirdre Johnston, MB BCh

Director Intervention Core

Dr. Johnston is a geriatric psychiatrist and co-investigator of MIND at Home, and Director of the PATCH Program (Psychogeriatric Assessment and Treatment in City Housing) which provides interdisciplinary mental healthcare to frail elderly in their homes in Baltimore City, both in-person and via telehealth. In 2008, the American Association for Geriatric Psychiatry created the AAGP Deirdre Johnston Award for Excellence and Innovation in Geriatric Mental Health Outreach Services, to encourage programs providing mental health services to the frail elderly in their homes.


Betty E. Smith Black, M.Ed., PhD

Director Outreach and Evaluation Core

Betty S. Black, PhD, is Associate Professor of Psychiatry at the Johns Hopkins School of Medicine in the Division of Geriatric Psychiatry and Neuropsychiatry. She has a joint appointment in the Department of Health Policy and Management, and is a faculty member of the Johns Hopkins-University of Maryland Center for Research on Services for Severe Mental Illness. Dr. Black is also a core faculty member in the Johns Hopkins School of Nursing Center for Innovative Care in Aging. Dr. Black received her BS from the University of Tennessee, her M Ed and Ed S degrees at the University of Florida in mental health counseling, and her doctorate at the Johns Hopkins School of Hygiene and Public Health with concentrations in behavioral sciences and gerontology. Her work in research focuses on need and unmet need for mental health care, quality of life, decision making and end-of-life care for people with dementia and ethical aspects of dementia research.


Laura Gitlin, PhD

Associate Director Intervention Core

Dr. Laura N. Gitlin, an applied research sociologist, is currently the dean of the College of Nursing and Health Professions at Drexel University. Dr. Gitlin is nationally and internationally recognized in the areas of nonpharmacologic approaches in dementia care, family caregiving, functional disability and aging in place. She is a well-funded researcher, having received continuous research and training grants from both federal agencies and private foundations, including the Alzheimer's Association and the National Institutes of Health for over 24 years. Her programs of research include understanding adaptive processes in old age, particularly with the use of assistive devices and environmental modifications—psycho-social-environmental approaches to helping older people with physical frailty age in place, nonpharmacologic approaches to enhancing quality of life of persons with dementia and their family caregivers, mental health disparities in older African Americans and depression treatments, and translating and implementing evidence-based interventions for family caregivers, individuals with dementia, and older adults with functional difficulties. She is developing with colleagues the Johns Hopkins University School of Nursing Center for Innovative Care in Aging which will examine issues related to developing and testing health promoting interventions for older adults and their families and implementation science.


Karen Davis, PhD

Director Payment Model Development Core

Dr. Davis is currently the Eugene and Mildred Lipitz Professor in the Department of Health Policy and Management and Director of the Roger C. Lipitz Center for Integrated Health Care at the Bloomberg School of Public Health at Johns Hopkins University. The center strives to discover and disseminate practical, cost-effective approaches to providing comprehensive, coordinated, and compassionate health care to chronically ill people and their families. 

Dr. Davis has served as President of The Commonwealth Fund, Chairman of the Department of Health Policy and Management at The Johns Hopkins Bloomberg School of Public Health, and Deputy Assistant Secretary for Health Policy in the Department of Health and Human Services.


David Roth, PhD


Dr. Roth is currently the Director of the Center on Aging and Health (COAH) at Johns Hopkins University and a Professor in the Division of Gerontology and Geriatric Medicine, with joint appointments as a Professor in the Department of Epidemiology and the Department of Biostatistics of the Johns Hopkins Bloomberg School of Public Health. COAH is an interdisciplinary research center with core investigators from the Schools of Medicine, Public Health, and Nursing. Prior to joining the faculty at Johns Hopkins in 2012, Dr. Roth was a Professor of Biostatistics in the School of Public Health at the University of Alabama at Birmingham. He has over 25 years of experience as an investigator in the areas of gerontology, behavioral research, and applied statistical modeling. Dr. Roth has specific interests in the psychosocial aspects of chronic health conditions, both for patients and their family caregivers. This includes considerable research on the effects of caregiving for chronic neurological conditions such as stroke-related disabilities and dementia. Areas of statistical expertise include longitudinal analysis approaches, structural equation modeling, latent variable analyses, and mediation modeling.


Jeannie-Marie Leoutsakos, PhD


Dr. Leoutsakos is the Director of the Psychiatry Biostatistics and Methodology Core, and an Associate Professor of Psychiatry and Behavioral Sciences.  Her research involves the application of biostatistics to psychiatric research, both clinical and epidemiological, with interests in latent variable methods, including latent class analysis and growth mixture models which allow for the modeling of risk factors, treatment response, or outcomes as a function of latent class membership based on patterns of symptoms or shapes of trajectories over time.


Laura T. Pizzi, PharmD, MPH

Health Economist

Dr. Pizzi is the Director and Professor of the Health, Outcomes, Policy, and Economics Program at the Rutgers Ernest Mario School of Pharmacy.  She specializes in applied health economic and outcomes analyses of drugs and other healthcare interventions, with focus on models of care for older populations with chronic disease, Strong methodological expertise in designing and conducting economic analyses including intervention costing, cost effectiveness analysis, and cost benefit analysis, Piggybacked economic analyses alongside clinical trials, Decision analytic models


Kevin Frick, MA, PhD

Health Economist

Dr. Frick is the Vice Dean for Education at the Johns Hopkins Carey Business School. Trained as a health economist, he received his PhD in Economics and Health Services Organization and Policy at the University of Michigan. Professor Frick has been with Johns Hopkins University since 1996, spending more than 16 years at the Bloomberg School of Public Health before becoming Vice Dean for Education at the Carey Business School in April 2013. His research focuses on cost-effectiveness analysis in fields ranging from ophthalmology to nursing to cancer care. 

Jennifer Wolff, PhD


Jennifer L. Wolff is the Eugene and Mildred Lipitz Professor and Director of the Roger C. Lipitz Center for Integrated Health Care. She is an expert and thought leader in research and policy relating to the care of persons with complex health needs and disabilities. She has made major contributions to increasing understanding of the role of family caregivers in the interactions of older adults with the medical community. She has been involved in the development and evaluation of numerous initiatives aimed at better supporting older adults and their family caregivers, including applied research to develop practical tools and strategies that may be readily deployed in care delivery.


Nancy Hodgson, PhD, RN, FAAN

Director Training Development

Currently, Dr. Hodgson is the Anthony Buividas Term Chair in Gerontology, Associate Professor of Nursing and Director of Penn Nursing’s Hillman Scholars Program.  While at Johns Hopkins, Dr. Hodgson worked as an associate professor of nursing, associate director of implementation science and principal faculty at the Center for Innovative Care in Aging at Johns Hopkins, and core faculty at the Hopkins Center on Aging and Health. In 2016, Dr. Hodgson returned to Penn Nursing, where she earned her PhD and MSN degrees, to help nursing students become nurse scientists. Dr. Hodgson is the co-founder of the Palliative Care Program at the Madlyn and Leonard Abramson Center (formerly the Philadelphia Geriatric Center) — one of the first nursing-home based palliative care programs in the nation. She has developed a program of research focused on palliative care in older adults with complex healthcare needs. Her studies include an NIH-funded career development award investigating the efficacy of palliative, sensory-based interventions designed to ease neuroendocrine distress; and an American Cancer Society-funded study comparing the effectiveness of complementary therapy interventions in nursing home residents with cancer. Dr. Hodgson seeks to be at the forefront of developing the next generation of nonpharmacologic interventions to ease the suffering of her oldest and frailest patients. As part of a broader initiative to promote excellence in end-of-life care, she developed a nursing home based palliative care program in southeastern Pennsylvania, a nationally recognized model program for end-of-life care for nursing home residents.


Constantine Lyketsos,  M.D., M.H.S.

Associate Director CMS/ Co-I NIA

A world expert in the care and treatment of patients with Alzheimers and related dementias (AD), he has carried out pioneering work on the epidemiology and treatment of neuropsychiatric features of AD. An active clinician, teacher, and researcher, Dr. Lyketsos was the founding director of the Johns Hopkins Neuropsychiatry Service, which he led for over a decade. He developed one of the largest and most successful academic neuropsychiatry programs in the USA with special expertise in dementia and traumatic brain injury. Prior to taking leadership of Johns Hopkins Bayview Psychiatry, he was co-director of the Johns Hopkins Division of Geriatric Psychiatry and Neuropsychiatry. He has held a joint faculty appointment at the Hopkins Bloomberg School of Public Health since 1994.  His team is developing biomarkers to accelerate treatment development for AD and other forms of brain injury while designing and implementing innovative clinical trials. He leads efforts to ensure the provision of state of the art Dementia Care for people with dementia in the community. Dr. Lyketsos co-leads a Hopkins-wide effort to advance recovery of the wounded warrior and his family. He also serves on the NFL Players Association Mackey-White Mild Traumatic Brain Injury Committee for which he Chairs the Long-Term Outcomes subcommittee.


Jin Hui Joo, M.A., M.D. 

Study Physician 

Dr. Jin Hui Joo is a Johns Hopkins Community Physician and an assistant professor of psychiatry and behavioral sciences at Johns Hopkins University School of Medicine. She is board certified in general psychiatry.  She has an expertise in adult psychiatry, focusing particularly on the diagnosis and treatment of late-life depression and the management of dementia.