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

Clarissa Ann Thomas, SLP

Speech-Language Pathologist in Rock Island, IL · enumerated 2022 · practices at Children'S Therapy Center of the Quad Cities.

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

National Provider Identifier

1215652417

Verified

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Registry record

Entity type Individual (Type 1)

Name Clarissa Ann Thomas

Credential SLP

Sex Female

Practice address Rock Island, IL, 61201

Phone (309) 558-0145

Enumeration date Oct 10, 2022

Last updated in NPPES Oct 10, 2022

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 100896 (IA) Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146.016401 (IL) Primary

SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP 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 Clarissa Thomas practice?

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

What is the NPI number for Clarissa Thomas?

The National Provider Identifier (NPI) for Clarissa Thomas is 1215652417, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-10.