Ms. Mariah C Williams

Ms. Mariah C Williams is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Yuma, AZ, registered in the NPPES registry with NPI 1245823681 since 2021.

✓ Active NPI ✓ Valid NPI checksum

NPI	1245823681
Entity type	Individual (Type 1)
Name	Ms. Mariah C Williams
Sex	Female
Practice address	1475 S HETTEMA ST, Yuma, AZ, 85364
Phone	9285033348
Enumeration date	2021-02-17
Last updated in NPPES	2021-02-17

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
235Z00000X	Speech-Language Pathologist	Primary	SLPA12823	AZ

Copy-ready billing details

Provider: Mariah Williams
NPI: 1245823681
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: 1475 S HETTEMA ST, Yuma, AZ, 85364

Verify this record

Cross-check NPI 1245823681 against the authoritative CMS record: view Ms. Mariah C Williams on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Mariah Williams practice?

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

What is the NPI number for Mariah Williams?

The National Provider Identifier (NPI) for Mariah Williams is 1245823681, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-02-17.