Ellen Deffes, MS CCC/SLP
Speech-Language Pathologist · Syosset, NY
Ellen Deffes, MS CCC/SLP is a speech-language pathologist with a practice address in Syosset, New York, and NPI 1336384692, issued on Dec 15, 2008. Check the license (New York 007759-1, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ellen Deffes
- Credential
- MS CCC/SLP
- Primary taxonomy
- Speech-Language Pathologist 235Z00000X
- License number
- 007759-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 47 Humphrey Drive, Syosset, NY 11791
- Phone
- (516) 921-7171
- Enumerated
- Dec 15, 2008
- Entity
- Type 1 · individual
Also registered at 47 Humphrey Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Avitable, LCSW-RCase Manager/Care Coordinator1952546822
- Dianna PerezHealth Information Specialist/Technologist1972021541
- Gabriella SparacioSpecialist1790661510
- Michelle Varisco, M.S.,ED.Specialist1205188976
- Janet Verderosa, M.A.Speech-Language Pathologist1407001951
Verify Ellen Deffes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 007759-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
79 speech-language pathologist records list a Syosset practice address
They are 79 of the 1,054 NPPES records with a Syosset practice address, and 24,535 speech-language pathologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 79 in Syosset → All 24,535 in New York → Every provider in Syosset →
Other speech-language pathologist records in New York
- Allison AaronEast Setauket, NY1548875453
- Rebecca AaronsonOceanside, NY1881905289
- Kristen AasheimJefferson Valley, NY1669303012
- Luz AbadNew York, NY1124510599
- Yana Abakina, MS, CCC-SLPBrooklyn, NY1124525019
- Bailee AbalosHyde Park, NY1598659187
- Carolyn Abare, M.S.Pittsford, NY1437561115
- Stacy AbateGlendale, NY1255874848
- Molly Abatelli, M.S. , SLP-CF, TSSLDHicksville, NY1881423358
- Alena Abayev, M.A.CCC-SLPRichmond Hill, NY1104116128
Common questions
What is Ellen Deffes, MS CCC/SLP's NPI number?
Ellen Deffes, MS CCC/SLP's National Provider Identifier (NPI) is 1336384692, issued on Dec 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Deffes, MS CCC/SLP located?
The NPPES record lists a practice address at 47 Humphrey Drive, Syosset, NY, 11791. Phone: (516) 921-7171. Providers update this record themselves, so call before visiting.
How can I verify Ellen Deffes, MS CCC/SLP's license?
NPPES lists New York license number 007759-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.