Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammy Lewis-Bigger

Social Worker in Mcalester, OK · enumerated 2014 · practices at Creoks Mental Health Services.

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

National Provider Identifier

1780090498

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Registry record

Entity type Individual (Type 1)

Name Tammy Lewis-Bigger

Sex Female

Practice address 100 N 5th St, Mcalester, OK, 74501

Phone (918) 420-5343

Enumeration date Jul 2, 2014

Last updated in NPPES Jul 2, 2014

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

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 Tammy Lewis-Bigger?

The National Provider Identifier (NPI) for Tammy Lewis-Bigger is 1780090498, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tammy Lewis-Bigger practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-02.