NPPES file of Aug 9, 2026

Meryl Susan Leff, LCSW, CASAC, BCD

Addiction (Substance Use Disorder) Counselor · Babylon, NY

Meryl Susan Leff, LCSW, CASAC, BCD is an addiction (substance use disorder) counselor with a practice address in Babylon, New York, and NPI 1689767592, issued on Oct 2, 2006. Check the license (New York 10712, 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
1689767592
Name
Meryl Susan Leff
Credential
LCSW, CASAC, BCD
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License numbers
10712 NY
R049140-1 NY
Self-reported in NPPES; status is on the state search
Practice location
400 W Main St, Babylon, NY 11702
Phone
(631) 893-6355
Enumerated
Oct 2, 2006
Record last updated
Sep 11, 2025
Fax
(631) 893-6355
Medicaid ID
02116558 NY
Medicare enrollment
Enrolled (PECOS I20071001000671); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 5,180 in New York → Look up another NPI →

Also registered at 400 W Main St

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

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  4. Kristen Berry, P.T.Physical Therapist1528007853
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Verify Meryl Susan Leff 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 10712    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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Meryl Susan Leff among 5,180 addiction (substance use disorder) counselor records in New York

Meryl Susan Leff, LCSW, CASAC, BCD is one of 5,180 addiction (substance use disorder) counselor records with a practice address in New York. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 95% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileYes · 1% of these records are
  • Graduated1994 · median 2012 among the 75 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Counselor providers in New York

There are 5,180 addiction (substance use disorder) counselor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,180 in New York → Every provider in Babylon → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Kevin MescallBabylon, NY 117021558178780
  2. Kenrick Alfred, CASAC-T, CAMS IINorth Babylon, NY 117031255844460
  3. Patricia Bruno, CASACAmityville, NY 117011811289630
  4. Jennifer Carlson, CASACAmityville, NY 117011588087365
  5. Roseanne Cutolo, CASACAmityville, NY 117011275825093
  6. Jared DowdNorth Babylon, NY 117031043845654
  7. Lauren FocarileAmityville, NY 117011093094336
  8. Stephanie Fortounas, CASACAmityville, NY 117011285126987

Common questions

What is Meryl Susan Leff, LCSW, CASAC, BCD's NPI number?

Meryl Susan Leff, LCSW, CASAC, BCD's National Provider Identifier (NPI) is 1689767592, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Meryl Susan Leff, LCSW, CASAC, BCD located?

The NPPES record lists a practice address at 400 W Main St, Babylon, NY, 11702. Phone: (631) 893-6355. Providers update this record themselves, so call before visiting.

How can I verify Meryl Susan Leff, LCSW, CASAC, BCD's license?

NPPES lists New York license number 10712, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.