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MS. ELLEN DEFFES MS CCC/SLP
NPI 1336384692
Speech-Language Pathologist in Syosset, NY

Active since December 15, 2008
47 HUMPHREY DRIVE, SYOSSET, NY 11791(516) 921-7171 Get Directions Write a Review

NPPES record last updated: December 15, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ms. Ellen Deffes Ms Ccc/slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. ELLEN DEFFES MS CCC/SLP (NPI 1336384692) is an individual speech-language pathologist provider in Syosset, New York, licensed in New York (007759-1) and active in the NPI registry since December 2008.

NPPES Registry Identity

NPI1336384692
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMS. ELLEN DEFFESCredential: MS CCC/SLP
Location Address47 HUMPHREY DRIVESyosset, NY 11791-6012
Mailing Address85 Wagon RdRoslyn Heights, NY 11577-1541 · (516) 484-2136
Phone(516) 921-7171
Sole ProprietorYes
Enumeration DateDecember 15, 2008
✔ NPI 1336384692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in NY · 007759-1
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
47 HUMPHREY DRIVE, Syosset, NY 11791
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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. MICHELLE SPISAK VARISCO M.S.,ED.
Specialist
47 HUMPHREY DRIVE
SYOSSET, NY 11791
Nassau County (516) 921-7171
MS. JANET VERDEROSA M.A.
Speech-Language Pathologist
47 HUMPHREY DRIVE, VARIETY CHILD LEARNING CENTER
SYOSSET, NY 11791
Nassau County (516) 921-7171
GABRIELLA SPARACIO
Specialist
47 HUMPHREY DRIVE
SYOSSET, NY 11791
Nassau County (516) 921-7171
MS. ANGELA AVITABLE LCSW-R
Case Manager/Care Coordinator
47 HUMPHREY DRIVE
SYOSSET, NY 11791
Nassau County (516) 921-7171
DIANNA EUGENIA PEREZ
Specialist/Technologist, Health Information
47 HUMPHREY DRIVE
SYOSSET, NY 11791
Nassau County (516) 921-7171

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ellen Deffes's NPI number?

The NPI number for Ellen Deffes is 1336384692. It was assigned to this individual provider in the NPPES registry on December 15, 2008.

Where is Ellen Deffes located?

Ellen Deffes practices at 47 Humphrey Drive, Syosset, NY 11791. The listed phone number is (516) 921-7171.

What is Ellen Deffes's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Ellen Deffes was last updated on December 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.