Marburger Bund, German Medical Professional Association
Member of the American society of Anesthesiology
Member of the American Society of Regional Anesthesia

Member, Graduate Faculty, University of Florida, Gainesville, FL
Member, University of Florida McKnight Brain Institute, Gainesville, FL
Member, IACUC, University of Florida, Gainesville, Florida

Administrative Active Staff  Ohio Society of Anesthesiologists
Member. American Medical Association
Member. American Society of Anesthesiologists
Member. American Society of Regional Anesthesia
Member. Society of Ambulatory Anesthesiology
Member. Society of Neurosurgical Anesthesia and Critical Care
Member. Society for perioperative assessment and quality improvement
Active Member. society for perioperative assessment and quality improvement- Education Committee. Education Committee

Association of University Anesthesiologists
American Society of Anesthesiologists
California Society of Anesthesiologists
International Anesthesia Research Society
American Society of Regional Anesthesia and Pain Medicine
Society for Obstetric Anesthesia and Perinatology
Fellow of the Royal College of Anaesthetists
Obstetric Anaesthetists Association of Great Britain
Association of Anaesthetists of Great Britain and Ireland

American College of Physicians
International Anesthesia Research Society
Western Pennsylvania Society of Anesthesiologist
American Association for the Advancement of Science
Society for Technology in Anesthesia
International Liver Transplantation Society

American Society of Human Genetics
American Statistical Association
The International Association for the Study of Pain     

American Society of Anesthesiologists
Israel Society of Anesthesiologists
International Liver Transplantation society
International Anesthesia Research society    

Israeli Chapter of the International Association for Study of Pain
American Pain Society
The American Society of Human Genetics
The International Behavioral and Neural Genetics Society
Society for Neuroscience
International Association for the Study of Pain Present
Society for Obstetric Anesthesia and Perinatology Present
International Anesthesia Research Society Present
Clinical Translational Science Awards Present

American Society of Anesthesiologists
Pennsylvania Society of Anesthesiologists
Pennsylvania Medical Association
Allegheny County Medical Society
West Virginia State Society of Anesthesiologists (Honorary Member)
World Bariatric Anesthesia Society

Founder and executive member of the Interventional Pain Special Interest Group in Canadian  Pain society
Founder and vice-chair of the Ultrasound in Pain Medicine Special Interest Group American Society of regional Anesthesia and Pain Medicine (ASRA)
Member of the Emerging Technologies Assessment Committee at NANS
Medical Director American Association Pain Management in Ultrasound (AAPMU)

Member, American Psychological Association
Member, Gerontological Society of America
Member, American Geriatrics Society
Associate Editor, Psychology and Aging
Board of Advisors, Senior Services of Eastern Missouri
NIH Peer Review Committee: Psychobiology of Aging, ad hoc reviewer
NIH Risk, Adult Addictions Study Section, member

Brazilian Society of  Anesthesiology
Paranaense Society of Anesthesiology
Latin American Society of Regional Anesthesia
American Society of Anesthesiology
California Society of Anesthesiologists

European Association for Cranial Maxillo Facial Surgery (EACMFS)
German Association of Oral and Maxillofacial Surgery (DGMKG)
German Association of Implantology (DGI)
German Association of Oral Pathology and Medicine (AKOPOM)
International Association of Oral & Maxillofacial Surgeons (IAOMS)

American Medical Association
American Society of Anesthesiologists
PA Society of Anesthesiologists
American Society of Regional Anesthesia
International Anesthesia Research Society
Orthopedic Anesthesia and Pain Rehabilitation Society
Canadian Anesthesiologists Society

ASA (American Society of Anesthesiology) Committee on Neuroanesthesia
SAMBA (Society for Ambulatory Anesthesia) National Committee on Development
SAMBA (Society for Ambulatory Anesthesia) National and International Committee for Latin American Relationships
SNACC (The Society for Neuroscience in Anesthesia and Critical Care) Consensus Statement Committee

National and International
Nation Institute of Health
American Heart Association/Stroke and Neurovascular Diseases
American Heart Association/Heart and Ion Channel Regulation
American Heart Association/Brain 2
NIH/NINDS: BDCN Study Section
NIH/NINDS: BINP Study Section; Regular charter member

The Japanese Association for Thoracic Surgery
The Japanese Society for Cardiovascular Surgery
Japanese Heart Society
Japanese Surgical Society
American Society of Anesthesiologists
International Anesthesia Research Society
The Allegheny County Medical Society
Pennsylvania Medical Society
The International Liver Transplantation Society
Society for the Advancement of Blood Management
Society of Neuroscience
Society of Cardiovascular Anesthesiologists
American Medical Association
Society for Education in Anesthesia

American Society Critical Care Anesthesiologists Active
American Society for Anesthesiologists Active
American Medical Association Active
International Liver Transplantation Society Active
Pennsylvania Medical Society Active
Allegheny County Medical Society Active
American College of Physicians Active
Society for Critical Care Medicine Active
American Association of Clinical Directors Inactive

Sigma XI, the Scientific Research Society, Associate Member  
The American Association for the Advancement of Science American Chemical Society
American Physical Society
International Society of Magnetic Resonance in Medicine
Biophysical Society                                                                                      
Society for Neuroscience
Association of University Anesthesiologists, Elected Member Pennsylvania Society of Anesthesiologists
American Society of Anesthesiologists
American Academy of Nanomedicine
International Society of Cerebral Blood Flow and Metabolism