| Position | Organization | Time |
|---|
| Professor | The State Univerity of New York | 2004 - 2014 |
| Adjoint Professor | Psychiatry and Medicine, University of Colorado, School of Medicine | 2004 - 2014 |
| Visiting Professor | Department of Psychiatry, Cornell University, White Plains and New York | 2009 - Present |
| Visiting Professor | University of Massachusetts, Worcester, MA | 2008 - Present |
| Visiting Professor | University of New Mexico, Albuquerque | 2007 - Present |
| Member | Advisory Board, Biovail | 2005 - 2007 |
| Member | Consultant, Invesco | 2001 - 2004 |
| Vice Chair | Academic and Clinical Affairs, University of Colorado School of Medicine | 2000 - 2004 |
| Member | Consultant, Community Care Inc, Denver | 1998 - 2004 |
| Member | Consultant in Psychobiology, Boulder Community Hospital | 1990 - 2004 |
| Professor | Psychiatry and Medicine, Psychiatry, University of Colorado School of Medicine | 1989 - 2004 |
| Member | Interim Superintendent, Colorado Psychiatric Hospital | 1999 - 2001 |
| Medical Director | Colorado Psychiatric Hospital | 1989 - 2001 |
| Vice Chairman | Clinical Affairs, Psychiatry, University of Colorado School of Medicine | 1987 - 2001 |
| Interim Chair | Psychiatry, University of Colorado School of Medicine | 1999 - 2000 |
| Member | Attending Physician, Denver Veterans Administration Hospital | 1979 - 1999 |
| Visiting Professor | Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba | 1997 - Present |
| Member | Consultant in Psychobiology, Bethesda Psychiatric Center | Present |
| Member | Children/s Hospital, Denver Colorado | 1991 - 1996 |
| Member | Consulting Psychiatrist, Fitzsimons Army Hospital | 1978 - 1996 |
| Member | Consultant in Biological Psychiatry, Centennial Peaks Hospital | 1985 - 1994 |
| Visiting Professor | Department of Psychiatry, University of Oklahoma, Tulsa | 1993 - Present |
| Visiting Professor | Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba | 1992 - Present |
| Acting Chairman | Psychiatry, University of Colorado School of Medicine | 1991 - 1992 |
| Member | Consultant to Perez Architects, Project to design a new airport for Denver | 1988 - 1992 |
| Visiting Professor | Oregon Health Sciences University and Oregon Department of Human Resources, Portland | 1991 - Present |
| Member | Consultant in Psychobiology, Mt. Airy Hospital, Denver | 1987 - 1991 |
| Noland Lewis Visiting Professor | Department of Psychiatry, Carrier Foundation, Princeton, NJ | 1989 - Present |
| Associate Director | Colorado Psychiatric Hospital | 1986 - 1989 |
| Associate Professor | Psychiatry and Medicine, University of Colorado School of Medicine | 1983 - 1989 |
| Associate Professor | Psychiatry, University of Colorado School of Medicine | 1979 - 1989 |
| Member | Consultant, U. S. Administrators | 1984 - 1988 |
| Director | Clinical Affairs, Psychiatry, University of Colorado School of Medicine | 1986 - 1987 |
| Distinguished Visiting Professor | Psychiatry, Department of Psychiatry | Present |
| Member | University of Texas and Wilford Hall Medical Center, San Antonio | 1986 - Present |
| Visiting Professor | Department of Psychiatry, West Virginia University | 1985 - Present |
| Visiting Professor | Department of Psychiatry, Wright State University | 1985 - Present |
| Member | Associate Dean for Faculty Affairs, University of Colorado School of Medicine | 1984 - 1985 |
| Member | Acting Dean, University of Colorado School of Medicine | 1984 - Present |
| Visiting Professor | Departments of Psychiatry, University of Oregon and Good Samaritan Hospital Portland, Oregon | 1984 - Present |
| Distinguished Visiting Professor | Psychiatry, University of Texas and Wilford Hall Medical Center, San Antonio | 1984 - Present |
| Member | Visiting Lecturer in Psychiatry, Cornell University School of Medicine | 1983 - 1984 |
| Member | Associate Dean for Academinc and Faculty Affairs, University of Colorado School of Medicine | 1983 - 1984 |
| Member | Associate Dean for Academic Affairs, University of Colorado School of Medicine | 1982 - 1983 |
| Visiting Professor | Department of Psychiatry, University of Manitoba | Present |
| Member | Medical School Winnipeg, Canada | 1982 - Present |
| Member | External Examiner in Psychiatry and Internal Medicine, King Saud University, Riyadh, Saudi Arabia | 1982 - Present |
| Member | Associate Dean for Student Affairs, University of Colorado School of Medicine | 1979 - 1982 |
| Associate Director | General Clinical Research Center | 1978 - 1981 |
| Distinguished Visiting Professor | Psychiatry, Department of Psychiatry, University of Texas, San Antonio | 1979 - Present |
| Director | Undergraduate Education in Psychiatry, University of Colorado School of Medicine | 1977 - 1979 |
| Assistant Professor | Psychiatry, University of Colorado School of Medicine | 1974 - 1979 |
| Member | Moderator, Psychiatry Sections, Family Practice Review, University of Colorado Medical Center | 1974 - 1978 |
| Member | Consultant to Student Advisory Office, University of Colorado Medical Center | 1974 - 1977 |
| Member | Consulting Psychiatrist, General Medical Outpatient Clinic | Present |
| Member | University Hospital | 1974 - 1976 |
| Member | Consulting Psychiatrist, Department of Medical Education | Present |
| Member | Presbyterian Hospital | 1975 - Present |
| Member | Consultant, Colorado Non-Psychiatric Physicians Group | 1973 - 1975 |
| Instructor | Psychiatry, University of Colorado School of Medicine | 1973 - 1974 |
| Member | Attending Psychiatrist, Colorado Psychiatric Hospital | 1973 - Present |
| Member | Attending Physician, University Hospital | 1973 - Present |
| Member | Consultant, Billings Area Indian Health Service | 1972 - 1973 |
| Member | Consultant, Ft. Collins Welfare System | 1970 - 1971 |
| Director | Lower East Side Student Health Organization | 1963 - 1965 |
| Member | Director, Lower East Side Student Health Project | 1963 - Present |
| Member | Member, California Student Health Project | 1962 - Present |
| Member | Assistant Teacher, Operation Headstart | 1961 - Present |
| Role | Organization | Time |
|---|
| Member | American Psychiatric Association | Present |
| Fellow | Distinguished Life American Psychiatric Association | Present |
| Fellow | Distinguished American Psychiatric Association | Present |
| Fellow | American Psychiatric Association | Present |
| Member | Eggertsville Hose Company | Present |
| Member | Eggertsville Firemen's Benevolent Association | Present |
| Member | Amherst Technical Rescue Team | Present |
| Member | Colorado Psychiatric Society | Present |
| Member | Colorado Foundation for Medical Care | Present |
| Member | Group for Advancement of Psychiatry | Present |
| Member | American College of Psychiatrists | Present |
| Fellow | American College of Psychiatrists | Present |
| Member | Listed in The Best Doctors in America (all editions) | Present |
| Member | Listed in Who's Who in America | Present |
| Member | Listed in Who's Who in the West | Present |
| Member | Listed in International Who's Who in Medicine | Present |
| Member | Listed in Who's Who in Medicine and Healthcare | Present |
| Member | Listed in Castle Connolly Top Doctors | Present |
| Member | Listed in Personalities of the Americas | Present |
| Member | Listed in Men of Achievement | Present |
| Member | Listed in Who's Who in the World | Present |
| Member | Listed in International Who's Who of Intellectuals | Present |
| Member | Listed in Who's Who of Emerging Leaders in America | Present |
| Member | Listed in Who's Who in American Education | Present |
| Member | Listed in International Directory of Distinguished Leadership | Present |
| Member | Listed in America's Top Psychiatrists | Present |
| Member | ProtectNY | Present |
