Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Backyard Slp, LLC

Q: What type of organization is Backyard Slp, LLC?

Backyard Slp, LLC is registered in NPPES as a Speech-Language Pathologist (its primary provider taxonomy).

Speech-Language Pathologist in Waltham, MA · enumerated 2021 · authorized official Allison Smith, Speech-Language Pathologist.

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

National Provider Identifier

1538748439

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Registry record

Entity type Organization (Type 2)

Legal business name Backyard Slp, LLC

Practice address 226 Beal Rd, Waltham, MA, 02453

Phone (617) 285-9707

Enumeration date Apr 7, 2021

Last updated in NPPES Apr 7, 2021

Taxonomy & classification

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers Primary

Authorized official

Name Allison Smith

Title Speech-Language Pathologist

Phone (617) 285-9707

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

What type of organization is Backyard Slp, LLC?

Backyard Slp, LLC is registered in NPPES as a Speech-Language Pathologist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Allison Smith Speech-Language Pathologist · Waltham, MA NPI 1801077656

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-07.