Medicare Administrative Contractor (MAC) Tool
In some instances, practices may still bill to fiscal intermediaries and carriers up to two years following a complete MAC transition for outstanding claims that may fall within the allowed time frame for billing.
Jurisdiction
States/ Territories
Fiscial Intermediary
Carrier
MAC
1
American Samoa, California, Guam, Hawaii, Nevada, and Northern Mariana Islands
n/a
n/a
Palmetto
GBA
1
American Samoa
n/a
n/a
Palmetto
GBA
1
California
n/a
n/a
Palmetto
GBA
1
Guam
n/a
n/a
Palmetto
GBA
1
Hawaii
n/a
n/a
Palmetto
GBA
1
Nevada
n/a
n/a
Palmetto
GBA
1
Northern Mariana Islands
n/a
n/a
Palmetto
GBA
2
Alaska, Idaho, Oregon, and Washington
TBD
2
Alaska
Noridian Administrative Services
Noridian Administrative Services
TBD
2
Idaho
Noridian Administrative Services
CGS
TBD
2
Oregon
Noridian Administrative Services
Noridian Administrative Services
TBD
2
Washington
Noridian Administrative Services
Noridian Administrative Services
TBD
3
Arizona, Montana, North Dakota, South Dakota, Utah, and Wyoming
n/a
n/a
Noridian Administrative Services
3
Arizona
n/a
n/a
Noridian Administrative Services
3
Montana
n/a
n/a
Noridian Administrative Services
3
North Dakota
n/a
n/a
Noridian Administrative Services
3
South Dakota
n/a
n/a
Noridian Administrative Services
3
Utah
n/a
n/a
Noridian Administrative Services
3
Wyoming
n/a
n/a
Noridian Administrative Services
4
Colorado, New Mexico, Oklahoma, and Texas
n/a
n/a
TrailBlazer Health Enterprises, LLC
4
Colorado
n/a
n/a
TrailBlazer Health Enterprises, LLC
4
New Mexico
n/a
n/a
TrailBlazer Health Enterprises, LLC
4
Oklahoma
n/a
n/a
TrailBlazer Health Enterprises, LLC
4
Texas
n/a
n/a
TrailBlazer Health Enterprises, LLC
5
Iowa, Kansas, Missouri, and Nebraska
n/a
n/a
Wisconsin Physicians Health Insurance Corporation
5
Iowa
n/a
n/a
Wisconsin Physicians Health Insurance Corporation
5
Kansas
n/a
n/a
Wisconsin Physicians Health Insurance Corporation
5
Missouri
n/a
n/a
Wisconsin Physicians Health Insurance Corporation
5
Nebraska
n/a
n/a
Wisconsin Physicians Health Insurance Corporation
6
Illinois, Minnesota, and Wisconsin
n/a
n/a
TBD
6
Illinois
National Government Services
Wisconsin Physicians Service Insurance Corporation
TBD
6
Minnesota
Noridian Administrative Services
Wisconsin Physicians Service Insurance Corporation
TBD
6
Wisconsin
National Government Services
Wisconsin Physicians Service Insurance Corporation
TBD
7
Arkansas, Louisiana, and Mississippi
n/a
n/a
TBD
7
Arkansas
Pinnacle Business Solutions
Pinnacle Business Solutions
TBD
7
Louisiana
Pinnacle Business Solutions
Pinnacle Business Solutions
TBD
7
Mississippi
Pinnacle Business Solutions
Cahaba GBA
TBD
8
Indiana and Michigan
n/a
n/a
TBD
8
Indiana
National Government Services
National Government Services
TBD
8
Michigan
National Government Services
Wisconsin Physicians Service Insurance Corporation
TBD
9
Florida, Puerto Rico, and US Virgin Islands
n/a
n/a
First Coast Service Options, Inc.
9
Florida
n/a
n/a
First Coast Service Options, Inc.
9
Puerto Rico
n/a
n/a
First Coast Service Options, Inc.
9
US Virgin Islands
n/a
n/a
First Coast Service Options, Inc.
10
Alabama, Georgia, and Tennessee
n/a
n/a
Cahaba Government Benefit Administrators, LLC
10
Alabama
n/a
n/a
Cahaba Government Benefit Administrators, LLC
10
Georgia
n/a
n/a
Cahaba Government Benefit Administrators, LLC
10
Tennessee
n/a
n/a
Cahaba Government Benefit Administrators, LLC
11
North Carolina, South Carolina, Virginia, and West Virginia
n/a
n/a
Palmetto Government Benefits Administrator, LLC
11
North Carolina
n/a
n/a
Palmetto Government Benefits Administrator, LLC
11
South Carolina
n/a
n/a
Palmetto Government Benefits Administrator, LLC
11
Virginia
n/a
n/a
Palmetto Government Benefits Administrator, LLC
11
West Virginia
n/a
n/a
Palmetto Government Benefits Administrator, LLC
12
Delaware, District of Columbia, Maryland, New Jersey, and Pennsylvania
n/a
n/a
Highmark Medicare Services
12
Delaware
n/a
n/a
Highmark Medicare Services
12
District of Columbia
n/a
n/a
Highmark Medicare Services
12
Maryland
n/a
n/a
Highmark Medicare Services
12
New Jersey
n/a
n/a
Highmark Medicare Services
12
Pennsylvania
n/a
n/a
Highmark Medicare Services
13
Connecticut and New York
n/a
n/a
National Government Services
13
Connecticut
n/a
n/a
National Government Services
13
New York
n/a
n/a
National Government Services
14
Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont
n/a
n/a
National Heritage Insurance Corporation
14
Maine
n/a
n/a
National Heritage Insurance Corporation
14
Massachusetts
n/a
n/a
National Heritage Insurance Corporation
14
New Hampshire
n/a
n/a
National Heritage Insurance Corporation
14
Rhode Island
n/a
n/a
National Heritage Insurance Corporation
14
Vermont
n/a
n/a
National Heritage Insurance Corporation
15
Kentucky and Ohio
n/a
n/a
CIGNA
15
Kentucky
National Government Services
n/a
CGS
15
OH
National Government Services
n/a
CGS
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