1975-1996
Alta Bates HospitalMedical Staff

1975-1980
Lecturer, UCB School of Public Health,
Health & Medical Sciences

1980-1982
Lecturer, UCB Department of Bioengineering

1982-1994
Research Fellow, UCB Department of Zoology

1984-1987
American Back Society, Research Director

1985-1990
Clinical Associate, UCSF Department of
Orthopedics

1990-1996
Clinical Associate, UCSF Department of
Neurosurgery

1992-1998
Lecturer, Meiji College of Oriental Medicine,
San Francisco Campus

Dec. 1998
Lecturer (Brachial Plexus Entrapments),
Department of Neurosurgery, UCSF

2005-2007
Visiting Scholar,
University of California - Berkeley