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

Antonia Juliette Walton, SLP

Speech-Language Pathologist in Tucson, AZ · enumerated 2016.

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

National Provider Identifier

1851840037

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Registry record

Entity type Individual (Type 1)
Name Antonia Juliette Walton
Credential SLP
Sex Female
Practice address Tucson, AZ, 85712
Phone (520) 232-2021
Fax (520) 232-2553
Enumeration date Sep 28, 2016
Last updated in NPPES Sep 28, 2016

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 TSLP10235 (AZ) 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.

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Frequently asked questions

Is NPI 1851840037 active?
Yes, as of the latest NPPES snapshot, NPI 1851840037 is active (record last updated 2016-09-28).
How do I verify Antonia Walton's NPI record?
Cross-check NPI 1851840037 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-28.