Dr.Poonsak Sumritmanoporn graduated with a Doctor of Medicine degree with second class honors form Chiang Mai University in 1991.
He subsequently completed 3 years of training in General Surgery, principally at the Vachira Hospital, Bangkok Medical College (1994-1997).
He worked as general surgeon in Uttaradit hospital before graduating a fully qualified Plastic and Reconstructive surgeon from Siriraj Hospital, Mahidol University (200-2002).
Prior to working as a Plastic Reconstructive Surgeon in Bangkok Hospital Phuket. He worked as the plastic and reconstructive surgeon in Uttaradit hospital and in his private cosmetic surgery clinic in Uttaradit province (2002-2011).