NPPES file of Aug 9, 2026

Nancy Lois Klein, LCSW

Clinical Social Worker · New York, NY

Nancy Lois Klein, LCSW is a clinical social worker with a practice address in New York, New York, and NPI 1639238421, issued on Dec 7, 2006. Check the license (New York PR015476-1, 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
1639238421
Name
Nancy Lois Klein
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
PR015476-1 NY
Self-reported in NPPES; status is on the state search
Practice location
11 Riverside Dr, New York, NY 10023
Phone
(212) 721-7240
Enumerated
Dec 7, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(914) 722-4372
Medicaid ID
01926750 NY
Medicare enrollment
Enrolled (PECOS I20110106000758); may accept Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 1974
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 clinical social worker records → All 29,293 in New York → Look up another NPI →

Also registered at 11 Riverside Dr

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

  1. Esther Baldinger, M.A.Speech-Language Pathologist1477705937
  2. Albert Brok, PHDClinical Psychologist1699839555
  3. Michal Ginach, L.C.S.W. PSY DClinical Social Worker1134286347
  4. Liza Karsten, CSW,MSWClinical Social Worker1598964850
  5. Alfred Kleinbaum, PH.D.Clinical Psychologist1316255342
  6. Irene Kolker, LCSWClinical Social Worker1225042062

Verify Nancy Lois Klein 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 PR015476-1    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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Nancy Lois Klein among 29,293 clinical social worker records in New York

Nancy Lois Klein, LCSW is one of 29,293 clinical social worker records with a practice address in New York. 8% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 83% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated1974 · median 2001 among the 5,004 with a school on file
  • Record last updated2007 · 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 1041C0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6,908 clinical social worker records list a practice address in New York

They are 6,908 of the 98,468 NPPES records with a practice address in New York, and 29,293 clinical social worker records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 29,293 in New York → Every provider in New York → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Lynne Alterman, LCSWNew York, NY 100231437119344
  2. Janet Berk, LCSWNew York, NY 100231972566511
  3. Donna Bersch, LCSWNew York, NY 100231740251776
  4. Lee Chew, L.C.S.W.New York, NY 100231760450076
  5. Linda Grunbaum, LCSWNew York, NY 100231255377644
  6. Brigitte Lifschitz, LCSWNew York, NY 100231881697167
  7. Erna Neumann, ANP; PMHNP; PMHNPNew York, NY 100231487617122
  8. Michael Penn, LCSWNew York, NY 100231801874607

Common questions

What is Nancy Lois Klein, LCSW's NPI number?

Nancy Lois Klein, LCSW's National Provider Identifier (NPI) is 1639238421, issued on Dec 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Lois Klein, LCSW located?

The NPPES record lists a practice address at 11 Riverside Dr, New York, NY, 10023. Phone: (212) 721-7240. Providers update this record themselves, so call before visiting.

How can I verify Nancy Lois Klein, LCSW's license?

NPPES lists New York license number PR015476-1, 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.

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.