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

William Conant Chevaillier

CPA, Attorney · Mysock, Chevaillier & Birdsong, LLP

Tulsa, Oklahoma 74104

William Conant Chevaillier, CPA, Attorney in Tulsa, OK

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William Conant Chevaillier, CPA in Tulsa · CPA Seek