ADDENDUM D.  FINAL CY 2018 GEOGRAPHIC ADJUSTMENT FACTORS (GAFs)* [Updated February 2018]				
Medicare Administrative Contractor	Locality Number	Medicare Locality	2018 with 1.0 Work Floor	
10102	00	ALABAMA	0.929	
02102	01	ALASKA**	1.294	
03102	00	ARIZONA	0.980	
07102	13	ARKANSAS	0.924	
01112	54	"BAKERSFIELD, CA"	1.026	
01112	55	"CHICO, CA"	1.025	
01182	71	"EL CENTRO, CA"	1.025	
01112	56	"FRESNO, CA"	1.025	
01112	57	"HANFORD-CORCORAN, CA"	1.025	
01182	18	"LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES CNTY), CA"	1.090	
01182	26	"LOS ANGELES-LONG BEACH-ANAHEIM (ORANGE CNTY), CA"	1.090	
01112	58	"MADERA, CA"	1.025	
01112	59	"MERCED, CA"	1.025	
01112	60	"MODESTO, CA"	1.025	
01112	51	"NAPA, CA"	1.119	
01182	17	"OXNARD-THOUSAND OAKS-VENTURA, CA"	1.077	
01112	61	"REDDING, CA"	1.025	
01112	62	"RIVERSIDE-SAN BERNARDINO-ONTARIO, CA"	1.030	
01112	63	"SACRAMENTO--ROSEVILLE--ARDEN-ARCADE, CA"	1.032	
01112	64	"SALINAS, CA"	1.035	
01182	72	"SAN DIEGO-CARLSBAD, CA"	1.038	
01112	07	"SAN FRANCISCO-OAKLAND-HAYWARD (ALAMEDA/CONTRA COSTA CNTY), CA"	1.159	
01112	52	"SAN FRANCISCO-OAKLAND-HAYWARD (MARIN CNTY), CA"	1.133	
01112	05	"SAN FRANCISCO-OAKLAND-HAYWARD (SAN FRANCISCO CNTY), CA"	1.159	
01112	06	"SAN FRANCISCO-OAKLAND-HAYWARD (SAN MATEO CNTY), CA"	1.159	
01112	65	"SAN JOSE-SUNNYVALE-SANTA CLARA (SAN BENITO CNTY), CA"	1.077	
01112	09	"SAN JOSE-SUNNYVALE-SANTA CLARA (SANTA CLARA CNTY), CA"	1.175	
01182	73	"SAN LUIS OBISPO-PASO ROBLES-ARROYO GRANDE, CA"	1.027	
01112	66	"SANTA CRUZ-WATSONVILLE, CA"	1.054	
01182	74	"SANTA MARIA-SANTA BARBARA, CA"	1.044	
01112	67	"SANTA ROSA, CA"	1.043	
01112	68	"STOCKTON-LODI, CA"	1.025	
01112	53	"VALLEJO-FAIRFIELD, CA"	1.119	
01112	69	"VISALIA-PORTERVILLE, CA"	1.025	
01112	70	"YUBA CITY, CA"	1.025	
01112	75	REST OF CALIFORNIA	1.025	
04112	01	COLORADO	1.010	
13102	00	CONNECTICUT	1.072	
12202	01	DC + MD/VA SUBURBS	1.126	
12102	01	DELAWARE	1.017	
09102	03	"FORT LAUDERDALE, FL"	1.040	
09102	04	"MIAMI, FL"	1.080	
09102	99	REST OF FLORIDA	0.994	
10202	01	"ATLANTA, GA"	1.002	
10202	99	REST OF GEORGIA	0.958	
01212	01	"HAWAII, GUAM"	1.049	
02202	00	IDAHO	0.935	
06102	16	"CHICAGO, IL"	1.059	
06102	12	"EAST ST. LOUIS, IL"	1.005	
06102	15	"SUBURBAN CHICAGO, IL"	1.053	
06102	99	REST OF ILLINOIS	0.973	
08102	00	INDIANA	0.937	
05102	00	IOWA	0.934	
05202	00	KANSAS	0.944	
15102	00	KENTUCKY	0.938	
07202	01	"NEW ORLEANS, LA"	0.996	
07202	99	REST OF LOUISIANA	0.958	
14112	03	SOUTHERN MAINE	0.989	
14112	99	REST OF MAINE	0.951	
12302	01	BALTIMORE/SURR. CNTYS	1.067	
12302	99	REST OF MARYLAND	1.023	
14212	01	"METROPOLITAN BOSTON, MA"	1.100	
14212	99	REST OF MASSACHUSETTS	1.043	
08202	01	"DETROIT, MI"	1.025	
08202	99	REST OF MICHIGAN	0.964	
06202	00	MINNESOTA	0.978	
07302	00	MISSISSIPPI	0.915	
05302	02	"METROPOLITAN KANSAS CITY, MO"	0.987	
05302	01	"METROPOLITAN ST. LOUIS, MO"	0.984	
05302	99	REST OF MISSOURI	0.938	
03202	01	MONTANA***	1.027	
05402	00	NEBRASKA	0.930	
01312	00	NEVADA***	1.005	
14312	40	NEW HAMPSHIRE	1.022	
12402	01	NORTHERN NJ	1.099	
12402	99	REST OF NEW JERSEY	1.065	
04212	05	NEW MEXICO	0.975	
13202	01	"MANHATTAN, NY"	1.134	
13202	02	"NYC SUBURBS/LONG ISLAND, NY"	1.162	
13202	03	"POUGHKPSIE/N NYC SUBURBS, NY"	1.053	
13292	04	"QUEENS, NY"	1.164	
13282	99	REST OF NEW YORK	0.960	
11502	00	NORTH CAROLINA	0.956	
03302	01	NORTH DAKOTA***	0.980	
15202	00	OHIO	0.963	
04312	00	OKLAHOMA	0.949	
02302	01	"PORTLAND, OR"	1.020	
02302	99	REST OF OREGON	0.976	
12502	01	"METROPOLITAN PHILADELPHIA, PA"	1.061	
12502	99	REST OF PENNSYLVANIA	0.973	
09202	20	PUERTO RICO	1.003	
14412	01	RHODE ISLAND	1.036	
11202	01	SOUTH CAROLINA	0.941	
03402	02	SOUTH DAKOTA***	0.974	
10302	35	TENNESSEE	0.935	
04412	31	"AUSTIN, TX"	0.999	
04412	20	"BEAUMONT, TX"	0.959	
04412	09	"BRAZORIA, TX"	1.002	
04412	11	"DALLAS, TX"	1.002	
04412	28	"FORT WORTH, TX"	0.986	
04412	15	"GALVESTON, TX"	1.008	
04412	18	"HOUSTON, TX"	1.013	
04412	99	REST OF TEXAS	0.963	
03502	09	UTAH	0.974	
14512	50	VERMONT	0.989	
11302	00	VIRGINIA	0.990	
09202	50	VIRGIN ISLANDS	1.003	
02402	02	"SEATTLE (KING CNTY), WA"	1.076	
02402	99	REST OF WASHINGTON	1.001	
11402	16	WEST VIRGINIA	0.949	
06302	00	WISCONSIN	0.953	
03602	21	WYOMING***	0.995	
				
GAF equation: (0.50866 * work GPCI) + (0.44839 * PE GPCI) + (0.04295 * MP GPCI).				
				
"*January 1, 2018 through December 31, 2018, the GAFs reflect a 1.0 Work GPCI floor as required by the Bipartisan Budget Act of 2018 (February 9, 2018)."				
				
**GAF reflects a 1.5 work GPCI floor in Alaska established by the MIPPA.				
***GAF reflects a 1.0 PE GPCI floor for frontier states established by the Affordable Care Act.				
