Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William O Thompson, M.D.

Legal Medicine in Jackson, MS · enumerated 2006.

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

National Provider Identifier

1235164021

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Registry record

Entity type Individual (Type 1)

Name Dr. William O Thompson

Credential M.D.

Sex Male

Practice address 1421 N State St, Ste. 504, Jackson, MS, 39202

Phone (601) 969-9050

Fax (601) 354-2443

Enumeration date Jul 11, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License 5413 (MS) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does William Thompson practice?

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

What is the NPI number for William Thompson?

The National Provider Identifier (NPI) for William Thompson is 1235164021, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.