Different FI/MAC carriers are under contract with CMS at different times. Reference the CMS website for MAC Contract Status (for example): https://www.cms.gov/medicare/medicare-contracting/medicare-administrative-contractors/who-are- the-macs#MapsandLists Fiscal Intermediary Numbers (as of October 2021): 00010 Alabama BC — Alabama (term. 05/2009)(replaced with MAC #10101) 00011 Alabama BC — Iowa (term. 10/2007) replaced by MAC # 03401) 00011 Cahaba — (RHHI) (term. 06/2011) replaced by MAC # 03401 ) 00012 Iowa (terminated) replaced by MAC # 05101) 00012 Arizona — Noridian — J3 A MAC (AZA)(term. 05/2008) 00020 Arkansas BC — Arkansas 00021 Arkansas BC — Rhode Island(term. 05/2009) 00030 Arizona BC (term. 09/2007)(replaced by MAC # 03101) 00040 California BC (term. 11/2000) 00090 Florida BC (term. 02/2009)(replaced with MAC #09101) 00101 Georgia BC (term. 05/2009)(replaced with MAC #10201) 00130 Indiana BC/Administer Federal (term. 7/22/2012)(replaced with MAC # 08101) 00131 Illinois — Anthem 00140 Iowa — Wellmark (term. 05/2000) 00150 Kansas BC (term. 02/2008)(replaced with MAC # 05201) 00160 Kentucky — Anthem (term. 4/30/2011)(replaced with MAC # 15101) 00180 Maine BC (term. 05/2009)(replaced with MAC #14004 and 14101) 00180 Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island (Maine RHHI)(term. 05/2009)(replaced with MAC #14004 and 14101 ) 00181 Massachusetts — Maine BC (term. 05/2009) 00190 Carefirst of Maryland (term. 09/2005) 00230 Mississippi BC 00230 Trispan Health Services (LA-MS) (term. 09/2009)(previously also MOA) 00242 BCBS of MS (MOA) (term. 04/2008)(replaced with MAC # 05301) 00242 Missouri (terminated)(replaced with MAC # 05301) 00250 Montana BC (term. 11/2006)(replaced by MAC # 03201) 00260 Nebraska BC (term. 11/2007)(replaced with MAC # 05401) 00270 New Hampshire BC — New Hampshire, Vermont (term. 06/2009)(replaced with MAC #14501) 00280 New Jersey BC (term. 07/2000) 00308 Empire BC — New York, Connecticut, and Delaware (term. 11/2008)(replaced with MAC # 12101, 13201 and 13101) 00310 North Carolina BC (term. 09/2002) 00320 North Dakota BC — North Dakota (term. 12/1/2006)(replaced with MAC # 03301) 00322 North Dakota BC — Washington and Alaska 00323 North Dakota BC — Idaho, Oregon, and Utah (term. 11/2006)(replaced with MAC # 03501) 00325 Noridian — Idaho, Oregon 00332 Administar — Ohio Anthem — Ohio 00340 Oklahoma BC (term. 02/2008)(replaced with MAC # 04301) 00350 Regence — Oregon, Idaho, Utah (term. 11/2005) 00363 Pennsylvania/Highmark — Veritus (term. 07/2008) 00366 Highmark (MD and DC) — Part A (eff. 10/2005)(term. 07/2008) 00370 Rhode Island BC (term. 03/2004)(replaced with MAC #14401) 00380 South Carolina BC — South Carolina (term. 01/2011)(replaced with MAC #11004 and 11201) 00380 Palmetto GBA — AL, AR, GA, FL, IL, IN, KY, LA, MS, MN, NC, OK, OH, SC, TN, TX (term. 01/2011) 00382 South Carolina BC — North Carolina (term. 10/2010)(replaced with MAC #11501) 00390 Riverbend BC — New Jersey, Tennessee (term. 08/2009)(replaced with MAC # 12001 and 10301) 00400 Texas BC — Colorado, New Mexico, Texas (term. 05/2008)(replaced with MAC #04101, 04201, 04401 — refer below) 00410 Utah BC (term. 09/2000) 00430 Premera BC — Washington, Alaska(term. 09/2004) 00450 Wisconsin BC — Wisconsin 00450 Michigan, Minnesota, New Jersey, New York, Wisconsin (RHHI) 00452 Wisconsin BC — Michigan (term. 7/22/2012)(replaced with MAC # 08201) 00453 Wisconsin BC — Virginia and West Virginia(term. 05/2011)(replaced with MAC #11301 and 11401) 00454 Wisconsin BC — California, Hawaii, Nevada (RHHI)(term. 08/2008)(replaced by MAC #01101, 01201 and 01301 — refer below) 00460 Wyoming BC (term. 10/2006)(replaced by MAC # 03601) 00468 North Carolina BC/CPRTIVA (terminated) 01101 California (eff. 8/15/2008)(replaces FI #00454) 01111 California entire state — Noridian Healthcare Solutions 01201 Hawaii (eff. 8/15/2008)(replaces FI #00454) 01211 Guam, Hawaii, Northern Mariana Islands — Noridian Healthcare Solutions 01301 Nevada (eff. 8/15/2008)(replaces FI #00454) 01311 Nevada — Noridian Healthcare Solutions 01390 AETNA — Washington 01911 American Samoa, California — entire state, Guam, Hawaii, Nevada, Northern Mariana Islands — Noridian Healthcare Solutions 02101 Alaska (eff. 02/01/2012) 02201 Idaho (eff. 02/01/2012) 02301 Oregon (eff. 02/01/2012) 02401 Washington (eff. 02/01/2012) 03001 JF Roll-up (2/3)(Orig. J3 term. 09/2007) 03101 Arizona (eff. 10/1/2007)(replaces FI #00030) 03201 Montana (eff. 12/1/2006)(replaces FI #00250) 03301 North Dakota (eff. 12/1/2006)(replaces FI #00320) 03401 South Dakota (eff. 3/1/2007)(replaces FI #00011) 03501 Utah (eff. 12/1/2006)(replaces FI #00323) 03601 Wyoming (eff. 11/1/2006)(replaces FI #00460) 04101 Colorado (eff. 6/1/2008) (terminated)(replaces FI #00400) 04111 Colorado (eff. 10/29/2012) 04201 New Mexico (eff. 6/16/2008)(replaces FI #00400) 04211 New Mexico (eff. 10/29/2012) 04301 Oklahoma (eff. 3/1/2008)(replaces FI #00340) 04311 Oklahoma (eff. 10/29/2012) 04401 Texas (eff. 6/16/2008)(replaces FI #00400) 04411 Texas (eff. 10/29/2012) 04911 WPS (Mutual of Omaha Legacy)(eff. 10/29/2012) 05101 Iowa (eff. 5/1/2008)(replaces FI #00012) 05201 Kansas (eff. 03/01/2008)(replaces FI #00150) 05301 West Missouri (eff. 5/1/2008)(replaces FI #00242) 05401 Physicians Service Insurance Corporation — Wisconsin 05901 Missouri-Entire state — Wisconsin Physicians Service Insurance Corporation 06001 J6 Roll-up 06014 RHHI Region D AK, AZ, CA, HI, ID, NV, OR, WA, American Samoa, Guam, and the Northern Marianas 06101 Illinois 06201 Minnesota 07101 Arkansas (eff. 08/20/2012) 07201 Louisiana (eff. 08/20/2012) 07301 Mississippi (eff. 08/20/2012) 08101 Indiana, WPS J8 (eff. 07/23/2012) 08201 Michigan, WPS J8(eff. 07/23/2012) 09101 Florida (eff. 2/13/2009) 09201 Puerto Rico (eff. 03/02/2009) 10111 Alabama — Palmetto GBA 10211 Georgia — Palmetto GBA 10311 Tennessee — Palmetto GBA 11004 Region C (HHH C RHHI) (eff. 1/24/2011) 11201 South Carolina (eff. 1/24/2011) 11301 Virginia (eff. 5/16/2011) 11401 West Virginia (eff. 5/16/2011) 11501 North Carolina (eff. 10/01/2010) 12101 Delaware (eff. 11/14/2008)(replaces FI # 00308) 12201 District of Columbia (eff. 08/01/2008) 12301 Maryland (eff. 08/01/2008) 12401 New Jersey (eff. 9/1/2008)(replaces FI # 00390) 12501 Pennsylvania (eff. 08/01/2008) 12901 Novitas Solutions J12 13101 Connecticut (eff. 8/1/2008)(replaces FI #00308) 13201 NGS-New York (eff. 7/18/2008)(replaces FI #00308) 14014 Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont – National Government Services, Inc 14111 Maine — National Government Services, Inc 14211 Massachusetts — National Government Services, Inc. 14311 New Hampshire — National Government Services, Inc. 14411 Rhode Island — National Government Services, Inc. 14511 Vermont — National Government Services, Inc 15004 CGS Government Services (HHH B RHHI)(eff. 06/13/2011) 15101 Kentucky (eff. 10/17/2011) 15201 Ohio (eff. 10/17/2011) 50333 Travelers; Connecticut United Healthcare(term. 07/2000) 52280 NE — Mutual of Omaha 52280 Mutual of Omaha (NT) Note: Nebraska — 00260 (NE) and 52280 (NT)