Private practice audiology. Chief department audiology Lutheran Medical Center, 1969-1973. Assistant professor speech science Hofstra University, 1972-1977.
Director division audiology, director auditory research laboratory Long Island (New York ) College Hospital, 1973-1981. Principal consultant Noise & Hearing Consultant, New York City, since 1969. Associate Forensic Audiology Associates, since 1978.
Consultant in audiology Medical Division Fire Department, New York City, since 1972, also honorary deputy chief. Consultant in audiology Police department, City of New York, honorary police surgeon. Consultant medical department Port Authority New York/New Jersey, 1984-1998, Memorial Sloan Kettering Cancer Center, 1985-1988.
Adjunct assistant professor of otolaryngology in audiology, director hearing & speech service New York Hospital and Cornell University Medical College, New York City, since 1982. Adjunct associate professor audiology Pace University, New York City, 1981-1983. Medical consultant and expert witness in forensic audiology, occupational noise exposure and effects of noise on man.
Noise specialist and citizen member of New York City Environmental Control Board (appointed by Mayor Edward I. Koch), 1988-1992.
Trustee The Floating Hospital. Fellow American Speech and Hearing Association (chairman committee on hearing conservation and industrial audiology, special course faculty since 1982, chairman committee on professional liability and risk management), American Academy Audiology (member ethical practices board). Member American Academy Otolaryngology (instructional course faculty since 1979, Certified of honor 1989), International Society Audiology, American Auditory Society, Acoustical Society of America.