| Faculty Appointments |
| 1971 - 1975 |
Assistant Instructor in Surgery
Department of Surgery
University of Pennsylvania School of Medicine |
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| 1975 - 1976 |
Instructor in Surgery, Department of Surgery
University of Pennsylvania School of Medicine |
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|
| 1977 - 1981 |
Associate in Surgery, Department of Surgery
University of Pennsylvania School of Medicine |
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| 1981 - 1987 |
Assistant Professor of Surgery
University of Pennsylvania School of Medicine |
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|
| 1987 - 1990 |
Associate Professor of Surgery
University of Pennsylvania School of Medicine |
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|
| 1990 - present |
J. William White Professor of Surgery
University of Pennsylvania School of Medicine |
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|
| 2001 - 2004 |
Vice-Chair, Surgery, Research |
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|
| 2004 - present |
Associate Director, Institute for Diabetes,
Obesity, and Metabolism
University of Pennsylvania School of Medicine |
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| Hospital and Administrative Appointments |
| 1981 - present |
Attending Staff
Hospital of the University of Pennsylvania |
