Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sierra M Overton

Speech-Language Pathologist in Petaluma, CA · enumerated 2024 · practices at Walker Speech Therapy, Inc..

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

National Provider Identifier

1285489260

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Registry record

Entity type Individual (Type 1)

Name Sierra M Overton

Sex Female

Practice address 1301 Redwood Way Ste 165, Petaluma, CA, 94954

Phone (707) 763-6419

Enumeration date Apr 22, 2024

Last updated in NPPES Apr 22, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 19092 (CA) 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.

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Frequently asked questions

What specialty is Sierra Overton?

Sierra Overton is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Deborah Davison Speech-Language Pathologist · Petaluma, CA NPI 1144364407 Walker Speech Therapy, Inc. Speech-Language Pathologist · Petaluma, CA NPI 1316404197 Adriana Chacon-Kreysa Student in an Organized Health Care Education/Training Program · Petaluma, CA NPI 1124751383

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-22.