Dr Mark Hamlin graduated from the University of Auckland medical school in 1998. He transferred to Perth as a resident medical officer and then emergency department registrar before spending 12 months in Cornwall, UK, to gain experience in general paediatrics and neonatal care. Subsequently, he returned to Auckland and Palmerston North to commence radiology training with an emphasis on interventional procedures. Dr Hamlin completed his radiology training in 2006 and was awarded the RANZCR part II gold medal for pathology examinations.

Dr Mark Hamlin interests outside of medicine include swimming, general fitness/health, biking, sailing and windsurfing.

Dr Hamlin has developed specialised skills for treatment of musculoskeletal pain conditions with the use of radiology to guide interventions. He has over 10 years experience performing interventional pain management. The techniques utilised include image-guided radiofrequency ablation (RFA) to treat cervical, thoracic and lumbar facet joint pain, and RFA of Morton's neuroma; platelet rich plasma and autologous tenocyte implantation for tendinopathy; a wide range of image-guided nerve block treatments; and cortisone injections for spinal and joint conditions, Durolane/Eufflexa/Synvisc injections for osteoarthritis. He has performed over 20 000 spinal procedures and a similiar volume of joint-related procedures.