Professor Lasisi is currently the Chief Medical Director of Ladoke Akintola University of Technology Teaching Hospital, Osogbo, Nigeria. He completed his medical training from the Obafemi Awolowo University, Ile Ife, Nigeria and Otorhinolaryngology fellowship in the West African College of Surgeons and the National Postgraduate Medical College in Nigeria in 1999 and 2000 respectively. He started as a faculty at the Department of Otorhinolaryngology, College of Medicine, University of Ibadan in 2000 and became full Professor of Otologic Biology in 2010.
He was the immediate past Chair of the Department. He had extensive research experience in Otology particularly epidemiology and molecular genetics of hearing impairment and superlative otitis media. His Thesis on the biomarkers of suppurative otitis media among children earned the Doctor of Medicine (M.D.) of the University of Ibadan in 2013.He served the university in various capacities as member and chair of committees.
As a visiting Professor in the Hussmann Institute of Human Genomics, University of Maimi between June 2014 and May 2015, he documented the first deafness mutation among Nigerians. He was the Victor AnomaNgu Citation Lecturer of the West African College of Surgeons in the year 2014 where he delivered a talk titled "The Role of Biomarkers on Ear Infection and Aging, the Adventure of a Surgeon in the Laboratory". He has trained many residents and supervised their researches leading to their fellowship award. He is the principal investigators of researches on genetics of hereditary deafness and otitis media among Nigerians and reviewer to many high impact journals. He has been recipient of the University of Ibadan, MacArthur Research Multidisciplinary Research Grant and the Nigerian Tertiary Educational fund.
He is a member in Council and Otorhinolaryngology examiner of the West African College of Surgeons and the National Postgraduate Medical College in Nigeria. He has been a member of Faculty Board of both the West African College of Surgeons and the National Postgraduate Medical College in Nigeria.He has delivered keynote and chaired sessions in various regional/international conferences. He has more than 100 publications in peer reviewed journals, and he is widely cited.
He is married to Dr. (Mrs.)Jemilat Lasisi, a fellow of the same College and Lecturer in Physiology/Oral Pathology in the University of Ibadan and they are blessed with four children.