Leonard H Mcwilliams DDS LLC

Leonard H Mcwilliams DDS LLC is a healthcare organization registered as General Practice Dentistry in Deridder, LA, holding Type 2 (organization) NPI 1598887572 since 2007. The authorized official on file is Leonard Mcwilliams, Principal Officer.

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NPI	1598887572
Entity type	Organization (Type 2)
Legal business name	Leonard H Mcwilliams DDS LLC
Practice address	501 BON AMI ST, Deridder, LA, 70634
Phone	3374621315
Fax	3374626411
Enumeration date	2007-04-03
Last updated in NPPES	2020-08-22

Authorized official

Name	Leonard Mcwilliams
Title	Principal Officer
Phone	3374621315

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	3362	LA

Other identifiers

Identifier	Type	State	Issuer
1833622	Medicaid	LA	—

Copy-ready billing details

Provider: Leonard H Mcwilliams DDS LLC
NPI: 1598887572
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 501 BON AMI ST, Deridder, LA, 70634

Providers at this address

NPI	Name	Type	Specialty	Location
1609988799	Leonard Mcwilliams	Individual	General Practice Dentistry	Deridder, LA
1982185799	Jennifer Cooley	Individual	Family Nurse Practitioner	Deridder, LA

Verify this record

Cross-check NPI 1598887572 against the authoritative CMS record: view Leonard H Mcwilliams DDS LLC on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where is Leonard H Mcwilliams DDS LLC located?

The practice location on file with NPPES is in Deridder, LA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.