No Name-Surname Duration
1 Mr. Teerasak Raksajja  A.D. 1978-April 1979
2 Dr. Songyot Chaichana  April 1979 - April 1982
3 Dr. Vithit Attavejkul  22 April 1982 - March 1983
4 Dr. Pornthep Lertsapcharoen M.D. April 1983 - March 1984
5 Dr. Chalermphong Ariyadej M.D. April 1984 - April 1985
6 Dr. Krit Jaruchart May 1985 - March 1986
7 Dr. Pravit Indrasukhum April 1986 - March 1987
8 Dr. Eid Youngwan Yong Yuan M.D. April 1987 - March 1988
9 Dr. Phanun Sukwong April 1988 - April 1989
10 Dr. Kawee Wirunkree M.D. May 1989 - March 1990
11 Dr. Kasiwat Srisangkan M.D. April 1990 - March 1991
12 Dr. Yuttana Udomwong M.D. April 1991 - April 1992
13 Drs. Linchong Sathanakul May 1992 - April 1993
14 Dr. Kasem Tangkasemsamran May 1993 - March 1995
15 Dr. Surisit Ponglaohapan M.D. April 1995 - April 1996
16 Dr. Kajon Winaipanich M.D. May 1996 - 25 June 1998
17 Drs.Patcharee Yuttapatakorn M.D. July 1998 - April 1999
18 Dr.Surachai Amrongrotjanakopol May 1999 - May 2000
19 Dr. Sombat Bunsaklert M.D. May 2000 - March 2006
20 Drs.Phawansawan Meechin April 2006 - Present