Sierra M Overton

Sierra M Overton is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Petaluma, CA, registered in the NPPES registry with NPI 1285489260 since 2024. Practices at Walker Speech Therapy, Inc. (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1285489260
Entity type	Individual (Type 1)
Name	Sierra M Overton
Sex	Female
Practice address	1301 REDWOOD WAY STE 165, Petaluma, CA, 94954
Phone	7077636419
Enumeration date	2024-04-22
Last updated in NPPES	2024-04-22

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
235Z00000X	Speech-Language Pathologist	Primary	19092	CA

Copy-ready billing details

Provider: Sierra Overton
NPI: 1285489260
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: 1301 REDWOOD WAY STE 165, Petaluma, CA, 94954

Other providers at this practice address

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

Verify this record

Cross-check NPI 1285489260 against the authoritative CMS record: view Sierra M Overton 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

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-04-22.