NPI Portal NPI Lookup & Verification

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

Matthew Dillion Williams

Adult Day Care Clinic/Center in New Madrid, MO · enumerated 2019.

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

National Provider Identifier

1720646540

Verified

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Registry record

Entity type Individual (Type 1)
Name Matthew Dillion Williams
Sex Male
Practice address New Madrid, MO, 63869
Enumeration date Jun 5, 2019
Last updated in NPPES Jun 5, 2019

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

Taxonomy & licenses

261QA0600X Adult Day Care Clinic/Center Ambulatory Health Care Facilities Primary

Other identifiers

Identifier Type State Issuer
841946865 Medicaid MO -

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 Matthew Williams?
The National Provider Identifier (NPI) for Matthew Williams is 1720646540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Matthew Williams practice?
The practice location on file with NPPES is in New Madrid, MO. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-05.