Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J Eaton, MD

Family Medicine Physician in North Port, FL · enumerated 2005 · practices at David G. Cislo, D.O., P.A..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275514333

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Registry record

Entity type Individual (Type 1)

Name William J Eaton

Credential MD

Sex Male

Practice address 13815 Tamiami Trl, North Port, FL, 34287

Phone (941) 426-4900

Fax (941) 423-9422

Enumeration date Nov 7, 2005

Last updated in NPPES Aug 25, 2020

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License ME47272 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
58496	Other	FL	BCBS
007617600	Medicaid	FL	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does William Eaton practice?

The practice location on file with NPPES is in North Port, FL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Eaton?

The National Provider Identifier (NPI) for William Eaton is 1275514333, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-25.