Oak Brook · DuPage County · checked Oct 21, 2026
CPAs in Oak Brook, Illinois
66 current IDFPR licenses with an address of record in Oak Brook: 50 licensed CPAs and 16 CPA firms, plus 22 registered CPAs (registered, not licensed) listed separately. Featured (labeled) and claimed listings first, then A–Z.
- Licensed CPAs
- 50
- CPA firms
- 16
- Registered, not licensed
- 22
- Checked
- Oct 21, 2026
Registered CPAs in Oak Brook
22 listings
Registered CPA · Oak BrookAlan AlportReg. #239028913Since 2012Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookDavid J ArtsReg. #239000722Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookElizabeth D BuffardiReg. #239014176Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookKeith CooperReg. #239000177Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookDario S DelfiaccoReg. #239025985Since 2011Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookAngela S DeppeReg. #239004787Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookAlicia J FilakReg. #239003508Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookCynthia M FoggReg. #239003895Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookAqsa Y GodilReg. #239017214Since 2007Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookSunanda R GokhaleReg. #239016786Since 2007Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookLaurence E HermanReg. #239013836Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookGregory KrzentzReg. #239025719Since 2011Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookMichelle E MazdaReg. #239015660Since 2007Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookVesna S NikolicReg. #239000836Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookJoy E PoulosReg. #239011029Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookFrank A ScarpinitiReg. #239003867Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookNetasha S ScarpinitiReg. #239004863Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookStephen M SchusterReg. #239014536Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookNahid N ShahatitReg. #239002077Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookMadhuri K ThakerReg. #239029425Since 2012Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookJuliet Y ZhouReg. #239003398Since 2006Registered, not licensed · checked Oct 21, 2026Registered CPA · Oak BrookMonica ZolowiczReg. #239001755Since 2006Registered, not licensed · checked Oct 21, 2026
Registered CPAs hold the Illinois CPA certificate and a current IDFPR registration but not a license; under the Illinois Public Accounting Act they may not sign audit reports. Licensed vs registered. Listings show current IDFPR records only. Records for Oak Brook that are not current: 5 cancelled, 27 inactive, 132 not renewed, 1 revoked. Search them in Check a CPA. Discipline shown on listings comes from the same IDFPR data.
More cities in DuPage County
Naperville 836Downers Grove 310Elmhurst 293Wheaton 267Aurora 215Glen Ellyn 200Lombard 148Hinsdale 147Lisle 126Woodridge 92Darien 82Carol Stream 80Roselle 80Westmont 77Bloomingdale 63Burr Ridge 60Clarendon Hills 52Villa Park 52Addison 50Itasca 41Winfield 41West Chicago 38Oakbrook Terrace 37Warrenville 37All of DuPage County →West Suburbs →