Code:
awk -F';' '{$17 "%" split($7,a,","); print a[3] "%" $15 "%" $16 "%" $0}' temp.dat
100010463%20120103%20120401%CLMREQ;00002315000000000011;1548356967;EIN;390606261;;FFFF_SAK,1,100010463,Y,0|FFFF_NPI,1,1548356967,N,1|FFFF_YYY_ID,1,100010463,N,2;;;1699720086;;;;EP;20120103;20120401;GC;2013
18663%20130101%20130331%CLMREQ;00002315000000000001;1316908164;EIN;310806261;;AAAA_SAK,1,18663,Y,0|AAAA_NPI,1,1316998164,N,1|AAAA_TTT_ID,1,30370300,N,2;;;1699720086;;;;EP;20130101;20130331;IP;2013
18663%20121201%20130229%CLMREQ;00002315000000000002;1316908164;EIN;310806261;;AAAA_SAK,1,18663,Y,0|AAAA_NPI,1,1316998164,N,1|AAAA_TTT_ID,1,30370300,N,2;;;1699720086;;;;EP;20121201;20130229;IP;2013
18663%20121201%20130101%CLMREQ;00002315000000000022;1316908164;EIN;310806261;;AAAA_SAK,1,18663,Y,0|AAAA_NPI,1,1316998164,N,1|AAAA_TTT_ID,1,30370300,N,2;;;1699720086;;;;EP;20121201;20130101;IP;2013
18663%20130101%20130430%CLMREQ;00002315000000000003;1720192893;EIN;320806261;;BBBB_SAK,1,18663,Y,0|BBBB_NPI,1,1720172893,N,1|BBBB_UUU_ID,1,100002999,N,2;;;1699720086;;;;EP;20130101;20130430;GC;2013
34082%20120203%20120301%CLMREQ;00002315000000000013;1366449767;EIN;390806961;;GGGG_SAK,1,34082,Y,0|GGGG_NPI,1,1366489767,N,1|GGGG_ZZZ_ID,1,32562000,N,2;;;1699720086;;;;EP;20120203;20120301;IP;2013
18663%20121201%20130131%CLMREQ;00002315000000000005;1003888704;EIN;390836261;;CCCC_SAK,1,18663,Y,0|CCCC_NPI,1,1003868704,N,1|CCCC_VVV_ID,1,34394500,N,2;;;1699720086;;;;EP;20121201;20130131; ;2013
100009394%20120103%20120401%CLMREQ;00002315000000000009;1174668474;EIN;272042615;;EEEE_SAK,1,100009394,Y,0|EEEE_NPI,1,1174618474,N,1|EEEE_XXX_ID,1,100009394,N,2;;;1699720086;;;;EP;20120103;20120401;IP;2013
18663%20121101%20130531%CLMREQ;00002315000000000007;1992777660;EIN;394806261;;DDDD_SAK,1,18663,Y,0|DDDD_NPI,1,1992757660,N,1|DDDD_WWW_ID,1,31598400,N,2;;;1699720086;;;;EP;20121101;20130531; ;2013
100010463%20110203%20110501%CLMREQ;00002315000000000016;1548356967;EIN;390606261;;FFFF_SAK,1,100010463,Y,0|FFFF_NPI,1,1548356967,N,1|FFFF_YYY_ID,1,100010463,N,2;;;1699720086;;;;EP;20110203;20110501;GC;2013