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  • Medicaid Provider Termination Alert: Revalidation deadlines are approaching. Failure by providers to revalidate will lead to termination and payment suspension. Check your account now at https://impact.illinois.gov/ to learn if your required revalidation is due this month. More revalidation information here.
Elizabeth M. Whitehorn, Director

Regional Office Locations

Aurora Region

Aurora Office: 2711 New York, Suite 203, Aurora, IL  60502

HFS.ARO@Illinois.gov

Lake County Satellite Office: 2133 Belvidere Road, Waukegan, IL 60085

Counties served: Kane, DuPage, Lake

Belleville Region

Collinsville Office: 1803 Ramada Boulevard, Suite B204, Collinsville, IL 62234

HFS.BRO@Illinois.gov

Counties served: Madison, St. Clair

Champaign Region

Champaign Office: 313 North Mattis, Suite 218, Champaign, IL 61821-2460

HFS.CRO@Illinois.gov

Counties served: Macon, Moultrie, Piatt, Shelby, Vermilion

Cook County Region

Cook Central Office: 36 South Wabash Avenue, Chicago, IL 60603

Hfs.CookCentral@illinois.gov

Cook Southern Office: 6221 South Emerald Drive, Chicago, IL 60621

Hfs.CookSouthern@illinois.gov

County served: Cook

Find your Region using your Zip code (pdf)

Joliet Region

Joliet Office: 16 West Cass Street, 4th Floor, Joliet, IL 60432

HFS.JRO@Illinois.gov

LaSalle County Satellite Office: 1570 First Avenue, Ottawa, IL 60432

Counties served: Bureau, Grundy, Iroquois, Kankakee, Kendall, LaSalle, Livingston, Will

Marion Region

Marion Office: 3419 Professional Park Drive, Marion, IL 62959

HFS.MRO@Illinois.gov

Counties served: Alexander, Bond, Clay, Clinton, Crawford, Edwards, Fayette, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jasper, Jefferson, Johnson, Lawrence, Marion, Massac, Monroe, Perry, Pope, Pulaski, Randolph, Richland, Saline, Union, Wabash, Washington, Wayne, White, Williamson

Peoria Region

Peoria Office: 401 Main Street, Suite 680, Peoria, IL 61602

HFS.PRO@Illinois.gov

Knox County Satellite Office: 467 E. Main, Suite B, Galesburg, IL 61401

Rock Island County Satellite Office: 4705 44th Street, Suite A, Rock Island, IL 61201  

Counties served: Fulton, Henderson, Henry, Knox, Marshall, McLean, Mercer, Peoria, Putnam, Rock Island, Stark, Tazewell, Warren, Woodford

Rockford Region

Rockford Office: 175 Executive Parkway, Suite 107, Rockford, IL 61107

HFS.RRO@Illinois.gov

Counties served: Boone, Carroll, DeKalb, JoDavies, Lee, McHenry, Ogle, Stephenson, Whiteside, Winnebago

Counties served: Boone, Carroll, DeKalb, JoDaviess, Lee, McHenry, Ogle, Stephenson, Whiteside, Winnebago

Springfield Region

Springfield Office: 607 East Adams Street, Springfield, IL 62701

HFS.SRO@Illinois.gov

Adams County Satellite Office: 300 Maine Street, Quincy, IL 62301

Counties served: Adams, Brown, Calhoun, Cass, Christian, DeWitt, Greene, Hancock, Jersey, Logan, Macoupin, Mason, McDonough, Menard, Montgomery, Morgan, Pike, Sangamon, Schuyler, Scott