Listed as a CPA in IRS public preparer records. Source: IRS PTIN FOIA extract (Feb 2026), retrieved October 23, 2026. https://www.irs.gov/pub/foia/foia-illinois-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

James O'Neill

CPA · Callero & Callero LLP

Des Plaines, Illinois 60018

James O'Neill, CPA in Des Plaines, IL

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James O'Neill, CPA in Des Plaines · CPA Seek