Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John William Campbell, PHD, MS, CCC-SLP

Speech-Language Pathologist in Oklahoma City, OK · enumerated 2006.

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

National Provider Identifier

1386683142

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Registry record

Entity type Individual (Type 1)

Name Dr. John William Campbell

Credential PHD, MS, CCC-SLP

Sex Male

Practice address 921 Ne 13th St, Oklahoma City, OK, 73104

Phone (405) 270-0501

Enumeration date Jun 6, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 2472 (OK) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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

How do I verify John Campbell's NPI record?

Cross-check NPI 1386683142 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386683142 active?

Yes, as of the latest NPPES snapshot, NPI 1386683142 is active (record last updated 2007-07-08).

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