Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sleep Disorder Diagnostic Center of South Louisiana, LLC

Sleep Disorder Diagnostic Clinic/Center in Houma, LA · enumerated 2007 · authorized official William Ladd, Organizer & Board of Managers.

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

National Provider Identifier

1386765907

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Registry record

Entity type Organization (Type 2)

Legal business name Sleep Disorder Diagnostic Center of South Louisiana, LLC

Practice address 1053 W Tunnel Blvd, Houma, LA, 70360

Phone (985) 580-2723

Enumeration date Apr 2, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name William Ladd

Title Organizer & Board of Managers

Phone (985) 876-0300

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

What type of organization is Sleep Disorder Diagnostic Center of South Louisiana, LLC?

Sleep Disorder Diagnostic Center of South Louisiana, LLC is registered in NPPES as a Sleep Disorder Diagnostic Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.