2016- Associate Director, Healthcare Delivery Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute
2012- Professor (Courtesy Appointment), Department of Psychology, College of Arts and Sciences, University of South Florida
1980-1981 Psychology Internship, Veterans Administration Medical Center, Allen Park, MI
1982-1984 Psychology Internship, Payne Whitney Clinic, The New York Hospital-Cornell Medical Center, New York, NY
1984-1985 Psychology Fellowship, Payne Whitney Clinic, The New York Hospital-Cornell Medical Center, New York, NY
1985-1987 Postdoctoral Fellowship in Psychosocial Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY
1985-1988 Instructor, Department of Psychiatry, Cornell University Medical College, New York, NY
1986-1990 Adjunct Assistant Professor, Clinical Psychology Program, Department of Psychology, New School for Social Research, New York, NY
1987-1988 Clinical Assistant Psychologist, Psychiatry Service, Memorial Sloan-Kettering Cancer Center, New York, NY
1988-1992 Assistant Attending Psychologist, Psychiatry Service, Memorial Sloan-Kettering Cancer Center, New York, NY
1988-1994 Assistant Professor, Department of Psychiatry, Cornell University Medical College, New York, NY
1988-1994 Assistant Attending Psychologist, The New York Hospital, New York, NY
1992-1994 Associate Attending Psychologist, Psychiatry Service, Memorial Sloan-Kettering Cancer Center, New York, NY
1994 Associate Attending Psychologist, Department of Human Genetics, Memorial Sloan-Kettering Cancer Center, New York, NY
1994 Associate Professor, Department of Psychiatry, Cornell University Medical College, New York, NY
1994-1999 Associate Professor, Department of Psychology, College of Arts and Sciences, University of South Florida, Tampa, FL
1994-2000 Clinical Program Leader, Psychosocial Oncology Program, Moffitt Cancer Center, Tampa, FL
1994-2002 Research Program Leader, Behavioral Oncology Program, Moffitt Cancer Center, Tampa, FL
1995-2012 Senior Member in Residence, Moffitt Cancer Center and Research Institute
1996-1999 Associate Professor (Courtesy Appointment), Department of Psychiatry, College of Medicine, University of South Florida, Tampa, FL
1997-1999 Associate Professor (Courtesy Appointment), Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, FL
1999-2004 Professor (Courtesy Appointment), Department of Psychiatry, College of Medicine, University of South Florida, Tampa, FL
1999-2012 Professor (Tenured), Department of Psychology, College of Arts and Sciences, University of South Florida, Tampa, FL
2000-2008 Clinical Program Leader, Psychosocial and Palliative Care Program, Moffitt Cancer Center, Tampa, FL
2002-2012 Research Program Leader, Health Outcomes and Behavior Program, Moffitt Cancer Center, Tampa, FL
2003 Interim Associate Center Director for Cancer Control, Moffitt Cancer Center, Tampa, FL
2003-2007 Professor (Joint Appointment), Department of Interdisciplinary Oncology, College of Medicine,
University of South Florida, Tampa, FL
2006-2012 Scientific Director, Survey Methods Shared Resource, Moffitt Cancer Center, Tampa, FL
2008-2012 Chair, Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL
2008-2012 Professor (Joint Appointment), Department of Oncologic Sciences, College of Medicine, University of South Florida
2012-2016 Associate Center Director, Division of Population Science, Moffitt Cancer Center and Research Institute
2012-2016 Senior Member (Tenured), Moffitt Cancer Center and Research Institute
2012-2016 Professor (Courtesy Appointment), Department of Oncologic Sciences, College of Medicine, University of South Florida