33 years practicing pediatrics. 23 years practicing benign pediatrics hematology as consultant. 10 years in undergraduate teaching as associate professor then professor. 30 years in postgraduate teaching. Visiting professor, Canadian college of medicine. Supervision on more than 50 graduation projects. Holds several skills development courses. Editor of 610 pages benign hematology book and 10 Arabic educational hematology booklets. 130 (peer reviewed / non-peered reviewed) publications, principal investigator of 15 research projects and co-investigator of 7 projects. Development of 20 published guidelines for Saudi ministry of health and GCC countries. Development of several treatment protocols. Crowned with eight awards.   Has developed the First Madinah Maternity and Children Hospital internal policy and procedures and job description in 2005. Introduction of the service of trans cranial doppler for sickle cell anemia in 2011 and T2* MRI for thalassemia in 2015. Establishment of coagulation laboratory in 2017. Establishment of pediatrics oncology center in 2003, creation of hemophilia program and Madinah hemophilia treatment center in 2007.     Member of most hematology societies local, regional, and international. Founder of seven hematology societies in Saudi Arabia and Middle East. Founder of four charity / Civil associations in Saudi Arabia dealing with hereditary blood disorders. Work hardly to improve hereditary blood disorders centers and establishment of new centers in Saudi Arabia since 2003. Work with the panel to get the recognition, approval, and membership of Saudi Arabia in world federation hemophilia. Work with the panel to get the recognition, approval, and membership of Saudi Arabia as country and Madinah HBD society in Thalassemia International Federation. President of four international congresses and 16 local conferences. Leader of 25 conferences Organizing / Scientific Committee, and member of 13 others. Organization of 16 teaching medical staff in different Saudi cities. Participation at 150 Volunteer / educational / Charity Medical Campaign to help patients and families in field of hereditary blood disorders. Invited Speaker to 65 International / Middle Eastern conferences, and 68 local conferences and symposiums. With more than 350 presentations. Attendant of 150 International / Middle Eastern conferences, and 96 local conferences and symposiums.