Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William E Collier Jr., M.D.

Family Medicine Physician in Denham Springs, LA · enumerated 2006.

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

National Provider Identifier

1154361244

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Registry record

Entity type Individual (Type 1)

Name William E Collier Jr.

Credential M.D.

Sex Male

Practice address 30819 Highway 16, Denham Springs, LA, 70726

Phone (225) 664-2029

Enumeration date Jun 7, 2006

Last updated in NPPES Jun 27, 2011

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 020479 (TN) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD.012659 (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
1342491	Medicaid	LA	-
06972046	Medicaid	MS	-
3051675	Medicaid	TN	-
P00293323	Other	TN	MEDICARE RAILROAD

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 William Collier's NPI record?

Cross-check NPI 1154361244 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1154361244 active?

Yes, as of the latest NPPES snapshot, NPI 1154361244 is active (record last updated 2011-06-27).

Other providers at this practice address

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Kasey Chenevert Family Medicine Physician · Denham Springs, LA NPI 1174554547 Robyn Germany Family Medicine Physician · Denham Springs, LA NPI 1801828686 Arif Qureshi Family Medicine Physician · Denham Springs, LA NPI 1679507032

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-27.