NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

William Ellis Cooper

General Practice Physician in Dayton, OH · enumerated 2022.

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

National Provider Identifier

1689316317

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Registry record

Entity type Individual (Type 1)
Name William Ellis Cooper
Sex Male
Practice address Dayton, OH, 45324
Enumeration date Apr 12, 2022
Last updated in NPPES Feb 11, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 35.153327 (OH) Primary

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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is William Cooper?
William Cooper is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Rylee Ramirez Student in an Organized Health Care Education/Training Program · Fairborn, OH NPI 1487306130 Aubrey Lippert Student in an Organized Health Care Education/Training Program · Fairborn, OH NPI 1639813280 Joshua Bacon Emergency Medicine Physician · Dayton, OH NPI 1346943081 Sondos Mishal Student in an Organized Health Care Education/Training Program · Fairborn, OH NPI 1215632104 Nicholas Haynie Student in an Organized Health Care Education/Training Program · Dayton, OH NPI 1023877305 Michael Larkins Student in an Organized Health Care Education/Training Program · Dayton, OH NPI 1740049907 Corianne Victor Student in an Organized Health Care Education/Training Program · Fairborn, OH NPI 1669232229 Jeffrey Ng Student in an Organized Health Care Education/Training Program · Dayton, OH NPI 1194585737

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-11.