Dr. Al-Khal earned his MBBCh from the Royal College of Surgeons in Ireland in 1989. He undertook his internship at Hamad Medical Corporation (HMC) in the State of Qatar, and in 1991, joined the Internal Medicine Residency Training Program at the University of Connecticut School of Medicine, CT, USA, followed by completion of a 2-year fellowship in Infectious Diseases at Hartford Hospital. He was awarded the Diploma of the American Board of Infectious Diseases in 1996. He was recertified in Infectious Diseases in 2013.

Dr. Al-Khal holds several clinical positions, chairs a variety of committees, and has led number of strategic projects at HMC. Between 1999-2001, he servwd as the Chair of Family Medicine and as the Chair of Department of Medicine from 2001 until 2012. Dr. Al-Khal has been the Head of Infectious Diseases  Division since 1998 and the Lead of the Communicable Disease Center and is also the National TB Program Manager and the Director of the Clinical AIDS Program. As Deputy Chief Medical Officer and the Director of Medical Education/DIO, he has notably led HMC's achievement of ACGME-I accreditation, and in 2018 recieved ACGME's Physician  International Award, to recognize his outstanding contributions to improving the quality of graduate medical education in Qatar. Dr. Al-Khal also has an advisory role to several public health programs under the umbrella of Qatar's Ministry of Public Health.

Dr. Al-Khal currently holds an appointment as Adjunct Professor of Clinical Medicine at Weill Cornell Medicine Qatar (WCM-Q) and as Clinical Professor of Medicine at Qatar University  College of Medicine  (QU CMED) as well as serves as QU CMED's Director of the Clinical Affairs  Department. 

He remains active in research and publishes 

regularly in the fields of Internal Medicine,.Pharmacology, Infectious Diseases  and Medical Education.