National Institutes of Health research fellow St. Louis University Medical School, 1970-1972. Intern, then assistant resident Harvard Surgical Service, Boston, 1972-1974. Resident in neurological surgery Neurological Institute Columbia Presbyterian Medical Center, New York City, 1974-1978.
Private practice West Roxbury, Massachusetts, 1978—1994. Consultant in neurosurgery New York City, since 1994. Director medical and science affairs The Bio Continuum Group, New York City, since 2001.
Adjunct instructor natural science Felician College, New Jersey.
Fellow American Trauma Society, American Academy Sports Medicine. Member American Academy Disability Evaluating Physicians (board directors, secretary, vice president 1987-1992), American College Emergency Medicine, American Medical Writers Association, Wilderness Medical Society, Pewter Collecting Club American, Cornell Club New York, Harvard Club Boston, International Wine and Food Society, United States Amateur Ballroom Dancers Association (board directors 1992).