Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William E Johnston MD Inc

Q: What is the NPI number for William E Johnston MD Inc?

The NPI for William E Johnston MD Inc is 1871608588, a Type 2 (organization) record in the CMS NPPES registry.

Family Medicine Physician in Vicksburg, MS · enumerated 2006 · authorized official William Johnston, President.

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

National Provider Identifier

1871608588

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Registry record

Entity type Organization (Type 2)

Legal business name William E Johnston MD Inc

Practice address 1901 Mission 66, Vicksburg, MS, 39180

Phone (601) 636-0097

Fax (601) 629-9969

Enumeration date Aug 20, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 19317 (MS) Primary

Authorized official

Name William Johnston

Title President

Phone (601) 636-0097

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

What is the NPI number for William E Johnston MD Inc?

The NPI for William E Johnston MD Inc is 1871608588, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for William E Johnston MD Inc?

NPPES lists William Johnston (President) as the authorized official for this organization.

Providers at this address

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