1976 -1978 Teaching Assistant, Molecular Cytogenetics, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York
1980 Teaching Assistant, Animal Cytology, School of Biological Sciences, University of Leicester, England
1982 Teaching Assistant, Advanced Molecular Biology, department of Biochemistry, Stanford University
1982 -1983 Teaching Assistant, Cells and Tissues, Department of Structural Biology, Stanford University
1983 Teaching Assistant, Human Anatomy, Department of Structural Biology, Stanford University
1983 -1984 Tutor, Anatomy and Physiology, Primary Care Associate Program, Stanford University
1985 Lecturer, Anatomy of the Kidney, Renal Physiology, Stanford University
6/1988 - 6/1991 Clinical Fellow in Medicine, Harvard Medical School
6/1988 - 6/1989 First-Year Resident Physician, Brigham and Women’s Hospital
7/1989 - 6/1990 Second-Year Resident Physician, Brigham and Women’s Hospita
7/1990 - 6/1991 Clinical Fellow in Medicine, Brigham and Women’s Hospital
6/1991 - 7/1992 Research/Clinical Fellow in Medicine, Brigham and Women’s Hospital
6/1991 - 6/1993 Research Fellow in Medicine, Harvard Medical School
7/1992-6/1996 Associate Physician, Brigham and Women’s Hospital
7/1993 - 6/1996 Instructor in Medicine, Harvard Medical School
1993 Attending Physician, Hematology/Oncology Service, Brigham and Women’s Hospital
7/1993-6/1996 Assistant Physician, Harvard University Health Services
7/1993-6/1996 Associate Staff Physician, Department of Medical Oncology, Dana-Farber Cancer Institute
7/1996-6/2012 Attending Physician, University of Michigan Health Systems
6/1996 - 8/2005 Assistant Professor of Internal Medicine, University of Michigan Medical School
6/1996 - 12/2005 Associate Director, Hematology/Oncology Fellowship Program, University of Michigan Medical School
9/2005 - 6/12/2012 Associate Professor of Internal Medicine, University of Michigan Medical School
2005 - 2002 Chief Rounds, Department of Internal Medicine, annually
7/1/2012 - 4/9/2018 Professor of Internal Medicine, University of Alabama at Birmingham (UAB)
7/1/2012 - 4/27/2017 Director, Hematologic Malignancy Program, UAB Division of Hematology and Oncology
7/1/2012 - 4/9/2018 Chair, Hematologic Malignancy Working Group, UAB Cancer Center
7/2012-4/2018 Attending Physician, University of Alabama at Birmingham Hospital
9/1/2012 - 4/9/2018 Alfred F. LoBuglio Endowed Chair for Translational Cancer Research, UAB
3/1/2013 - 4/9/2018 Associate Director, Clinical Research, UAB Comprehensive Cancer Center
7/1/2018 - Professor of Internal Medicine, Duke University
Member of the Duke Cancer Institute · 2018 - Present, Duke University
Professor of Medicine · 2023 - Present, Duke University