NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mejia D Williams

Clinical Social Worker in Evanston, WY · enumerated 2011.

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

National Provider Identifier

1588959324

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mejia D Williams
Sex Female
Practice address 190 Overthrust Road, Evanston, WY, 82930
Phone (307) 789-4224
Fax (307) 789-4225
Enumeration date Jun 9, 2011
Last updated in NPPES Mar 29, 2016

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License PCSW-580 (WY) Secondary
171M00000X Case Manager/Care Coordinator Other Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCSW #965 (WY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mejia Williams?
The National Provider Identifier (NPI) for Mejia Williams is 1588959324, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mejia Williams practice?
The practice location on file with NPPES is in Evanston, WY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-29.