NPPES file of Aug 9, 2026

Margaret Mary Demers, M.A. CCC, SLP

Speech-Language Pathologist · East Islip, NY

Margaret Mary Demers, M.A. CCC, SLP is a speech-language pathologist with a practice address in East Islip, New York, and NPI 1497982011, issued on Jun 22, 2009. Check the license (New York 5966-1, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497982011
Name
Margaret Mary Demers
Credential
M.A. CCC, SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
5966-1 NY
Self-reported in NPPES; status is on the state search
Practice location
369 E Main St, East Islip, NY 11730
Phone
(631) 277-6000
Enumerated
Jun 22, 2009
Record last updated
Jun 22, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 369 E Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Laurie Bedard, M.A., LAAudiologist1477720506
  2. Bonnie Chindamo, NPNurse Practitioner1639471642
  3. Scott Coyne, MDDiagnostic Radiology Physician1992733844
  4. Audrey Eisenstadt, MDDiagnostic Radiology Physician1285660266
  5. Tzanwei Fang, M.D.Diagnostic Radiology Physician1679801559
  6. Barbara Fee-Olsen, M.A., LAAudiologist1073685319

Verify Margaret Mary Demers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 5966-1
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

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16 speech-language pathologist records list a practice address in East Islip

They are 16 of the 355 NPPES records with a practice address in East Islip, and 24,851 speech-language pathologist records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in New York

  1. Allison AaronEast Setauket, NY1548875453
  2. Rebecca AaronsonOceanside, NY1881905289
  3. Kristen AasheimJefferson Valley, NY1669303012
  4. Luz AbadNew York, NY1124510599
  5. Yana Abakina, MS, CCC-SLPBrooklyn, NY1124525019
  6. Bailee AbalosHyde Park, NY1598659187
  7. Carolyn Abare, M.S.Pittsford, NY1437561115
  8. Stacy AbateGlendale, NY1255874848
  9. Molly Abatelli, M.S. , SLP-CF, TSSLDHicksville, NY1881423358
  10. Alena Abayev, M.A.CCC-SLPRichmond Hill, NY1104116128

Common questions

What is Margaret Mary Demers, M.A. CCC, SLP's NPI number?

Margaret Mary Demers, M.A. CCC, SLP's National Provider Identifier (NPI) is 1497982011, issued on Jun 22, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Mary Demers, M.A. CCC, SLP located?

The NPPES record lists a practice address at 369 E Main St, East Islip, NY, 11730. Phone: (631) 277-6000. Providers update this record themselves, so call before visiting.

How can I verify Margaret Mary Demers, M.A. CCC, SLP's license?

NPPES lists New York license number 5966-1, 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.