Change in Mailing Address for Medi-Cal TAR Submissions July 11, 2014 Medi Cal, Physician Resource Medi-Cal, Medi-Cal TAR, treatment authorization request 0 Effective for dates of service on or after July 1, 2014, all paper treatment authorization requests (TAR) currently being mailed to the Los Angeles Field Office and the Northern and Southern Pharmacy Sections should be mailed to the following address: West Sacramento TAR Processing Center 820 Stillwater Road West Sacramento, CA 95605-1630 Comments are closed.