1974-75 Fellow, Department of Medicine (Dermatology), Children's Hospital Medical Center, Boston, MA
1974-75 Assistant in Medicine, Beth Israel Hospital, Boston, MA
1975-77 Chief, Dermatology Section, Dept. of Medicine, Veterans Admin. Hospital, Seattle, WA
1977-82 Asst. Physician, Department of Medicine (Dermatology), New England Medical Ctr, Boston, MA
1982-89 Dermatologist, Department of Dermatology, New England Medical Center, Boston, MA
1982-89 Physician, Dept. of Medicine, New England Medical Center, Boston, MA
1985-87 Director, Phototherapy Unit, Dept. of Dermatology, New England Medical Ctr, Boston, MA
1986-89 Associate Dermatologist-in-Chief, New England Medical Center, Boston, MA
1989-98 Chief, Department of Dermatology, Buffalo General Hospital, Buffalo, NY
1991-98 Chief, Department of Dermatology, Children's Hospital of Buffalo, Buffalo, NY
1995-97 Chief of Dermatology, Veterans Administration Hospital, Buffalo, NY
1998-00 Clinical Director of Dermatology, Kaleida Health, Buffalo, NY
2000-00 Chief of Dermatology, Veterans Administration Hospital, Buffalo, NY