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

Nathan W Phelps

CPA · Optimal Accounting, LLC

Mesa, Arizona 85209

Nathan W Phelps, CPA in Mesa, AZ

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Nathan W Phelps, CPA in Mesa · CPA Seek