Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra Kay Williams, RN, BSN, HIS

Hearing Instrument Specialist in Mattoon, IL · enumerated 2018.

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

National Provider Identifier

1033699111

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Registry record

Entity type Individual (Type 1)

Name Sandra Kay Williams

Credential RN, BSN, HIS

Sex Female

Practice address 1300 Broadway Ave, Mattoon, IL, 61938

Phone (217) 246-1118

Enumeration date Aug 17, 2018

Last updated in NPPES Aug 17, 2018

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 3283 (IL) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Where does Sandra Williams practice?

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

What is the NPI number for Sandra Williams?

The National Provider Identifier (NPI) for Sandra Williams is 1033699111, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-17.