Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William M Lawley, DDS

General Practice Dentistry in Westchester, IL · enumerated 2012 · practices at William M Lawley DDS Ltd.

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

National Provider Identifier

1912243585

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Registry record

Entity type Individual (Type 1)

Name Dr. William M Lawley

Credential DDS

Sex Male

Practice address 10704 31st St, Westchester, IL, 60154

Phone (708) 409-0990

Enumeration date Dec 29, 2012

Last updated in NPPES Dec 31, 2012

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 19 17 431 (IL) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Where does William Lawley practice?

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

What is the NPI number for William Lawley?

The National Provider Identifier (NPI) for William Lawley is 1912243585, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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William M Lawley DDS Ltd Dental Clinic/Center · Westchester, IL NPI 1033363304

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-31.