NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Charles Holt Jr., RRT

Pulmonary Rehabilitation Registered Respiratory Therapist in Jackson, MS · enumerated 2013.

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

National Provider Identifier

1326481482

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. William Charles Holt Jr.
Credential RRT
Sex Male
Practice address 1500 E Woodrow Wilson Ave, Jackson, MS, 39216
Enumeration date Apr 9, 2013
Last updated in NPPES Apr 9, 2013

Taxonomy & licenses

2279P1005X Pulmonary Rehabilitation Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License RCP 2189 (MS) Primary

Other identifiers

Identifier Type State Issuer
HOLT31 Medicaid MS -

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 specialty is William Holt?
William Holt is registered in NPPES with the primary taxonomy of Pulmonary Rehabilitation Registered Respiratory Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-09.