Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen M Williams, MD

Diagnostic Radiology Physician in Hammond, LA · enumerated 2005.

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

National Provider Identifier

1265423420

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen M Williams

Credential MD

Sex Male

Practice address 15790 Paul Vega MD Dr, Department of Radiology, Hammond, LA, 70403

Phone (985) 230-6700

Fax (985) 230-1528

Enumeration date Nov 4, 2005

Last updated in NPPES May 2, 2017

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD012778 (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
300019049	Other	-	RR MEDICARE
08577773	Medicaid	MS	-
1197513	Medicaid	LA	-

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 Stephen Williams?

The National Provider Identifier (NPI) for Stephen Williams is 1265423420, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephen Williams practice?

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

Other providers at this practice address

Browse all →

Julie Joyce Certified Registered Nurse Anesthetist · Hammond, LA NPI 1558364075 Richard Grisoli Anesthesiology Physician · Hammond, LA NPI 1568467413 Laurence Michael May, MD, Apmc Anesthesiology Physician · Hammond, LA NPI 1154326767 North Oaks Medical Center, LLC Rural Acute Care Hospital · Hammond, LA NPI 1144227539 Carol Alyea Family Nurse Practitioner · Hammond, LA NPI 1629060744 Chad Harston Diagnostic Radiology Physician · Hammond, LA NPI 1649260910 John Miller Diagnostic Radiology Physician · Hammond, LA NPI 1164413324 North Oaks Physician Group, LLC Multi-Specialty Clinic/Center · Hammond, LA NPI 1427035211

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-02.