Campbell Development Group, LLC dba Diczok Income Tax Service is an Authorized IRS E-File Provider-EFIN137009 established in 2004. The tax service provides tax preparation and financial services to individuals and to sole proprietor / LLC businesses. John Diczok has a BA from Fordham College, an MBA from Fordham University and a Financial Planning Degree from Oglethorpe University. His IRS Preparer Tax Identification Number (PTIN) is P00506442.
