Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Sydney Natosha Humphrey, MSW, LCSW, RPT-S

Clinical Social Worker in Atoka, OK · enumerated 2008.

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

National Provider Identifier

1750538484

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Registry record

Entity type Individual (Type 1)

Name Ms. Sydney Natosha Humphrey

Credential MSW, LCSW, RPT-S

Sex Female

Practice address Atoka, OK, 74525

Phone (580) 889-0960

Enumeration date Aug 25, 2008

Last updated in NPPES Jun 21, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 4514 (OK) Primary

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

Other identifiers

Identifier	Type	State	Issuer
4514	Other	OK	LCSW

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

How do I verify Sydney Humphrey's NPI record?

Cross-check NPI 1750538484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1750538484 active?

Yes, as of the latest NPPES snapshot, NPI 1750538484 is active (record last updated 2018-06-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-21.