Connecticut Medical Society, Past.
Fairfield County Medical Association, Past
Connecticut Society of Neurological Surgeons, Active. Past President (twice).
Greater Bridgeport Medical Society, Past.
Mayo Alumni Association, Active. Past President, New York Chapter.
Mayo Alumni Neurosurgical Society, Active.
Congress of Neurological Surgeons, Senior, Lifetime Member.
American Association of Neurological Surgeons, Harvey Cushing Society, Senior, Lifetime Member.
New England Neurosurgical Society, Senior. Past Trustee.
New York Society of Neurosurgery. Past.
American College of Surgeons, Fellow.
Argentine College of Neurosurgeons, Fellow (Past).
Latin American Neurosurgical Federation, Founding Member.
Council on Stroke, American Heart Association, Fellow.
Interamerican College of Physicians and Surgeons. Fellow.
American Board of Neurological Surgery, Diplomate.
American Association of Neurological Surgeons, Member of the Education Committee.


Ethics of Neuroscience and medical professionalism. 

Neurosurgical Management of Spine Disease, with special emphasis in cervical and lumbar region problems, including up to date high tech minimally invasive techniques, computer-assisted image-guided neuronavigation, neurophysiological monitoring, instrumentation (plating, screws and rods, resorbable materials). 
Gamma Knife stereotactic radiosurgery for trigeminal neuralgia, brain tumors, (including metastases, skull base lesions, acoustic neurinomas, pituitary tumors, meningiomas), and AVM’s. 
Surgery for intracranial tumors through craniotomy, craniectomy, and cranioplasty.
Transphenoidal resection of pituitary tumors.
Psychosurgery, Deep Brain Stimulation and Neuromodulation.

Geography, Biology, History, Naval Warfare, Marine Navigation. 

History of Medicine and Neurosurgery 
Geography, Biology, History, Naval Warfare, Marine Navigation. Fauna, Flora, History and Geography of the South American Continent. History of Naval Warfare in South America.