1. Home
  2. Directory
  3. New York
  4. Babylon
  5. Counselor
  6. NPI Profile

MRS. MERYL SUSAN LEFF LCSW, CASAC, BCD
NPI 1689767592
Counselor - Addiction (Substance Use Disorder) in Babylon, NY

Active since October 02, 2006PECOS EnrolledAccepts Medicare Assignment
400 W MAIN ST, SUITE 338, BABYLON, NY 11702(631) 893-6355(631) 893-6355 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mrs. Meryl Susan Leff Lcsw, Casac, Bcd NPPES

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

MRS. MERYL SUSAN LEFF LCSW, CASAC, BCD (NPI 1689767592) is an individual addiction (substance use disorder) provider in Babylon, New York, licensed in New York (10712) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1994).

NPPES Registry Identity

NPI1689767592
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameMRS. MERYL SUSAN LEFFCredential: LCSW, CASAC, BCD
Location Address400 W MAIN ST, SUITE 338Babylon, NY 11702-3012
Mailing Address400 W Main St, Suite 338Babylon, NY 11702-3012 · (631) 893-6355 · Fax (631) 893-6355
Phone(631) 893-6355
Fax(631) 893-6355
Sole ProprietorYes
Medical School CMSOtherGraduated 1994
Enumeration DateOctober 2, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1689767592 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in NY · 10712
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X · License R049140-1 (NY)

Other Identifiers 11

Other2649282NY · Aetna Provider Id
Other87726NY · Un. Beh. Health Prov Id
Other131751NY · Vytra Provider Id
Other161543 MHSNY · Value Options Provider Id
Other7480430NY · Ghi Provider Id
OtherNX4021NY · Blue Cross Provider Id
Medicaid02116558NY
Other1435082NY · Cigna Provider Id
OtherP2559539NY · Oxford Provider Id
Other303899Mhn
Other42259PNY · Hip Provider Id

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Meryl Susan Leff Lcsw, Casac, Bcd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID446345797
PECOS Enrollment IDI20071001000671
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

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

DR. AMANDA MURDOLO AU.D.
Audiologist
400 W MAIN ST
BABYLON, NY 11702
Suffolk County (914) 333-5801
HAND REHABILITATION OF SUFFOLK
Occupational Therapist (Hand)
400 W MAIN ST, STE109
BABYLON, NY 11702
Suffolk County (631) 893-1957
SARAH DEMILT
Counselor (Mental Health)
400 W MAIN ST
BABYLON, NY 11702
Suffolk County (631) 223-8622
WARREN LOBO, MD, PC
Anesthesiology
400 W MAIN ST, SUITE 300
BABYLON, NY 11702
Suffolk County (631) 321-6400
LOBO & ADHAMI GASTROENTEROLOGY PC
Internal Medicine (Gastroenterology)
400 W MAIN ST, STE 300
BABYLON, NY 11702
Suffolk County (631) 321-6400
WARREN D. LOBO M.D.
Anesthesiology
400 W MAIN ST, SUITE 300
BABYLON, NY 11702
Suffolk County (631) 321-6400
DR. KOUROSH ADHAMI M.D.
Specialist
400 W MAIN ST, SUITE 300
BABYLON, NY 11702
Suffolk County (631) 321-6400
DR. CLAIRE A SCANLON-KOHLROSER MD, MPH
Internal Medicine (Nephrology)
400 W MAIN ST, SUITE 300
BABYLON, NY 11702
Suffolk County (631) 321-6400

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 Meryl Leff's NPI number?

The NPI number for Meryl Leff is 1689767592. It was assigned to this individual provider in the NPPES registry on October 2, 2006.

Where is Meryl Leff located?

Meryl Leff practices at 400 W Main St Suite 338, Babylon, NY 11702. The listed phone number is (631) 893-6355.

What is Meryl Leff's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Is Meryl Leff enrolled in Medicare?

Yes. Meryl Leff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Meryl Leff was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.