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

Dr. Roger Mark Williams, M.D.

Otolaryngology Physician in Lake Charles, LA · enumerated 2005.

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

National Provider Identifier

1750373460

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Registry record

Entity type Individual (Type 1)

Name Dr. Roger Mark Williams

Credential M.D.

Sex Male

Practice address Lake Charles, LA, 70601

Phone (337) 477-6172

Fax (337) 477-1422

Enumeration date Aug 18, 2005

Last updated in NPPES Jul 21, 2009

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

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 016891 (LA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1366901	Medicaid	LA	-
76-0216590	Other	LA	TRICARE/CHAMPUS

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

How do I verify Roger Williams's NPI record?

Cross-check NPI 1750373460 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1750373460 active?

Yes, as of the latest NPPES snapshot, NPI 1750373460 is active (record last updated 2009-07-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-21.