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

Willis Lauritz Petersen

CPA

Concord, California 94520

Willis Lauritz Petersen, CPA in Concord, CA

Specialties

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Licenses

No state license number is on file.

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