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-north%20dakota-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

Marshall W. McCullough

CPA, Attorney · Ohnstad Twichell PC

West Fargo, North Dakota 58078

Marshall W. McCullough, CPA, Attorney in West Fargo, ND

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Marshall W. McCullough, CPA in West Fargo · CPA Seek