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-iowa-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

Deidre J Hamstra

CPA · Winkel, Parker & Foster, CPA PC

Clinton, Iowa 52732

Deidre J Hamstra, CPA in Clinton, IA

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Deidre J Hamstra, CPA in Clinton · CPA Seek