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.

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  • Campbell Development Group, LLC
    1115 Broadway, Flr 12, New York, NY 10010

  • 646-269-5818