Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Curtis Anthony Williams, DO

Internal Medicine Physician in Somerset, KY · enumerated 2018.

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

National Provider Identifier

1649773219

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Registry record

Entity type Individual (Type 1)

Name Dr. Curtis Anthony Williams

Credential DO

Sex Male

Practice address 305 Langdon St, Somerset, KY, 42503

Phone (606) 451-2601

Enumeration date Mar 9, 2018

Last updated in NPPES Jul 3, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 04791 (KY) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License R4938 (KY) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Curtis Williams practice?

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

What is the NPI number for Curtis Williams?

The National Provider Identifier (NPI) for Curtis Williams is 1649773219, 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 2025-07-03.