Who We Are

Melissa A. McDiarmid, MD, MPH, DABT

Dr. McDiarmid received her B.A. degree in Biological Sciences in 1975 from the University of Maryland Baltimore County; her M.D. from the University of Maryland at Baltimore in 1979; and her M.P.H. in 1986 from The Johns Hopkins School of Public Health, where she also completed fellowship training in Occupational Medicine. She is board-certified in Internal Medicine, Occupational Medicine and Toxicology. She maintains professional society affiliations as a Fellow of the Collegium Ramazzini, American College of Physicians, American College of Occupational and Environmental Medicine and American College of Preventive Medicine and as Member of the American Public Health Association and the Society of Occupational and Environmental Health.

Dr. McDiarmid was Director of the Office of Occupational Medicine for the U.S. Occupational Safety & Health Administration (OSHA) in Washington, D.C., a position she held from 1991 until 1996. From 1987 until moving to OSHA, she was Assistant Professor of Environmental Health Sciences at The Johns Hopkins School of Hygiene and Public Health, where she directed the Occupational Medicine residency.

Currently, Dr. McDiarmid is Professor of Medicine and director of the University of Maryland School of Medicine's Occupational Health Program, where she teaches, sees patients and directs a surveillance program for Gulf War Veterans exposed to depleted uranium.

Dr. McDiarmid has authored numerous journal articles and book chapters on different occupational and environmental medicine topics related to healthcare workers, medical surveillance and management, reproductive health and occupational cancers.

Carrie Dorsey, MD, MPH

Dr. Dorsey received her B.S. degree from Bucknell University, in biology; her M.D. from the University of Maryland School of Medicine in 2001; and her M.P.H. from The Johns Hopkins Bloomberg School of Public Health in 2005.  She completed a residency in Internal Medicine at the University of Maryland Medical Center and a residency in Occupational and Environmental Medicine at the Johns Hopkins Bloomberg School of Public Health.  She is board-certified in Internal Medicine and Occupational and Environmental Medicine.  She maintains professional society affiliations with the Americal College of Occupational and Environmental Medicine.

Currently, Dr. Dorsey is Assistant Professor of Medicine in the Division of General Internal Medicine, Occupational Health Program at the University of Maryland School of Medicine.  Responsibilities include patient care, teaching, research, and resident supervision.

Dr. Dorsey has authored journal articles on several occupational and environmental medicine topics including smallpox immunization of healthcare workers and the neurocognitive effects of exposure to inorganic lead.  She was the recipient of the Irving J. Selikoff and Cesare Maltoni Student Poster Competition Award, at the Collegium Ramazinni:  Living in a Chemical World, Bologna, Italy, September 2005 for her work on the effect of lead exposure on neurocognitive test scores.

Current research interests include the development of protocols for biomonitoring by mail and the use of alternative matrices such as breast milk.  Populations of interest include first responders, healthcare and laboratory workers and veterans.  

Patricia Welsh Gucer, Ph.D

Dr. Gucer received her A.B. Degree from Dumbarton College of Holy Cross in 1963, where she was elected to the Beta Beta Beta Honor Society, and her Ph.D. from the Johns Hopkins University Department of Sociology in 2001. She is a member of Workers' Compensation Research Group and the American Public Health Association

Dr. Gucer has taught secondary school science, managed data for a longitudinal study of school children, and has been Baltimore Study Manager for a large multi-center clinical trial testing the effects of beta carotene on the incidence of lung cancer.

Dr. Gucer is currently an Assistant Professor at the University of Maryland School of Medicine.  She is co-Principal Investigator on two studies examining safe resident lifting practices and their impact on caregiver injuries in long-term care facilities.  She also works on a surveillance study of Gulf War Veterans exposed to depleted uranium.

Marc Oliver, RN, MPH, MBA

Marc's interesting life has included time with the Peace Corps in Africa, cutting-edge technology work as an instructional designer and programmer and, most recently, nursing. Marc is interested in studying the root causes of injuries and disability and changing systems to make them work to prevent occupational injury and illness.  

Tracy S. Roth, RN, BSN

Tracy received her Bachelor of Nursing Science degree in 1980 from the University of Bridgeport, Connecticut. She has worked in multiple clinical and public health settings. Tracy served as a senior staff nurse in the Clinical Research Center at The New York Hospital-Cornell Medical Center. She was subsequently appointed Epidermolysis Bullosa Registry coordinator for The Rockefeller University, Department of Investigational Dermatology. Her public health positions have included: grants management in Maternal and Infant Health Care in New London, CT; home care supervision in New York City; director of a home care agency office in Greenwich, CT; marketing and public relations coordinator and study coordinator for Georgetown University and The Georgetown University Hospital in Washington, D.C., and; case manager for the Department of Aging in Annapolis, Maryland.

Currently she is a research nurse on the Occupational Health team, where she organizes outreach programs, health education and the development of educational materials. She is the study coordinator for several University of Maryland medical surveillance programs.

Sheila Williams

Sheila is our focal point and program administrative assistant.  Before coming to the project in 2000, she worked in health care for 10 years. When she is not busy keeping things running smoothly, Sheila spends her off time studying in an administrative degree program and preparing for her certified professional secretarial examination. 

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