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

Sierra Zoll, SLPA

Speech-Language Assistant in Brockton, MA · enumerated 2018.

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

National Provider Identifier

1477033256

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Registry record

Entity type Individual (Type 1)

Name Sierra Zoll

Credential SLPA

Sex Female

Practice address Brockton, MA, 02301

Phone (508) 586-5977

Enumeration date Aug 21, 2018

Last updated in NPPES Aug 21, 2018

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

Taxonomy & licenses

2355S0801X Speech-Language Assistant Speech, Language and Hearing Service Providers · License 1873 (MA) 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

How do I verify Sierra Zoll's NPI record?

Cross-check NPI 1477033256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477033256 active?

Yes, as of the latest NPPES snapshot, NPI 1477033256 is active (record last updated 2018-08-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-21.