Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Casie Lynne Brittain, MSW,LCSW

Counselor in Oklahoma City, OK · enumerated 2008.

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

National Provider Identifier

1558530899

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Registry record

Entity type Individual (Type 1)

Name Mrs. Casie Lynne Brittain

Credential MSW,LCSW

Sex Female

Practice address 4045 Nw 64th St, Suite 520, Oklahoma City, OK, 73116

Phone (405) 842-4911

Fax (405) 842-5807

Enumeration date Feb 20, 2008

Last updated in NPPES Feb 22, 2011

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

Read the full guide → Validate an NPI →

Frequently asked questions

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.

What specialty is Casie Brittain?

Casie Brittain is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-22.