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

Anthea Klaassen

CPA · Jon C Sidoti, P.C.

Plymouth, Massachusetts 02360

Anthea Klaassen, CPA in Plymouth, MA

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Anthea Klaassen, CPA in Plymouth · CPA Seek