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Massis Speech & Language PLLC

Speech therapy practice in Herndon, VA

NPI active

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Public-record details

Address
209 Elden St Ste 204, Herndon, VA 20170
Phone
(571) 329-2658
Listed under
Speech therapy practices
NPI
1457227670
NPI status
Active in the NPPES registry
Provider type
Organization (practice, clinic or company)
Registered specialty (self-reported taxonomy)
Speech-Language Pathologist (235Z00000X)
Authorized official
Petra Massis, MA, CCC-SLP, Owner
NPI first issued
Oct 14, 2025
NPI record last updated
Oct 14, 2025

NPI 1457227670 is active in the federal NPPES registry (CMS). Source: NPPES NPI Registry (CMS) (record). Data as of 2026-09-30.

What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an organization, so it may cover several clinicians at this location. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Speech-language pathologists (SLPs) evaluate and treat speech sounds, language, stuttering, voice, and feeding and swallowing. Ask whether the clinic treats children and which ages.

View NPI 1457227670 in the official registry ↗

Checking a license: the number above is what the provider entered in the NPI registry. Your state licensing board's lookup shows whether it is current. For individual therapists, ASHA (speech) and NBCOT (occupational therapy) let you verify national certification.

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