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

Mr. William Joseph Lewis, M.A., CCC-SLP

Speech-Language Pathologist in Rising Sun, IN · enumerated 2011.

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

National Provider Identifier

1851689228

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Registry record

Entity type Individual (Type 1)

Name Mr. William Joseph Lewis

Credential M.A., CCC-SLP

Sex Male

Practice address Rising Sun, IN, 47040

Phone (812) 438-2219

Enumeration date Jul 19, 2011

Last updated in NPPES Jul 19, 2011

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SP9909 (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

What is the NPI number for William Lewis?

The National Provider Identifier (NPI) for William Lewis is 1851689228, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Lewis practice?

The practice location on file with NPPES is in Rising Sun, IN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-19.