2000 – Present
Fellow, Royal Society of Medicine

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1993 – Present
Hispano-American Medical Society

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1991 – Present
Fellow of the InterAmerican College of Physicians and Surgeons

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September 1991 – Present
New York State Society of Internal Medicine

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January 1991 – Present
New York State Medical Society

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June 1990 – Present
European Neurological Society

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February 1984 – Present
American Academy of Neurology

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1983 – Present
Pan American Epilepsy Society

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1982 – Present
Brooklyn Neurological Society

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November, 1981 – Present
Pediatric Neurology Latin-American Association

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November, 1981 – Present
Peruvian Society of Neurosurgery

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November, 1981 – Present
Peruvian Society of Electroencephalography and Clinical
Neurophysiology

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November, 1981 – Present
Peruvian Society of Neurology, Neurosurgery, and Psychiatry

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December, 1980 – Present
New York Academy of Sciences

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August, 1973 – Present
Chilean Society of Neurology, Neurosurgery and Psychiatry