Margaliet Ligtenstein, LCSW
Clinical Social Worker · New Haven, CT
Margaliet Ligtenstein, LCSW is a clinical social worker with a practice address in New Haven, Connecticut, and NPI 1558596999, issued on May 28, 2009. Check the license (Connecticut 00800, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Margaliet Ligtenstein
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 00800 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1440 Whalley Ave, New Haven, CT 06515
- Phone
- (203) 389-5599
- Enumerated
- May 28, 2009
- Record last updated
- Sep 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 389-5904
- Medicaid ID
- 004040572 CT
- Medicare enrollment
- Enrolled (PECOS I20190911000666); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 7,729 in Connecticut → Look up another NPI →
Also registered at 1440 Whalley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elaine Benevides, LCSWClinical Social Worker1679803548
- Patrice Brown, LCSWClinical Social Worker1801440094
- Elizabeth Davenport, LMSWSocial Worker1104473826
- Marcy Klein, LCSWSocial Worker1275148215
- Karen Merkel, PH.D.Clinical Psychologist1295335578
- Amy Rashba, MSW,LCSWClinical Social Worker1215278528
Verify Margaliet Ligtenstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 00800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Margaliet Ligtenstein among 7,729 clinical social worker records in Connecticut
Margaliet Ligtenstein, LCSW is one of 7,729 clinical social worker records with a practice address in Connecticut. 15% 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 2009, is newer than 29% of them.
- NPI issued2009 · 29% of these records are older, 68% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 23% of these records are
- Graduated1980 · median 2009 among the 1,784 with a school on file
- Record last updated2019 · 59% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
556 clinical social worker records list a practice address in New Haven
They are 556 of the 9,793 NPPES records with a practice address in New Haven, and 7,729 clinical social worker records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,729 in Connecticut → Every provider in New Haven → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Elaine Allen, LCSWNew Haven, CT 065151609051598
- Christine Banas, LCSWNew Haven, CT 065151891097820
- Elaine Benevides, LCSWNew Haven, CT 065151679803548
- Peter Bertolini, L.C.S.W.New Haven, CT 065151497059703
- Frances Goldberg-CohenNew Haven, CT 065151386936227
- Heather Howell, MSWNew Haven, CT 065151073801890
- Daniel Iead, LCSWNew Haven, CT 065151952444382
- Ellice Matza, MSWNew Haven, CT 065151962600973
Common questions
What is Margaliet Ligtenstein, LCSW's NPI number?
Margaliet Ligtenstein, LCSW's National Provider Identifier (NPI) is 1558596999, issued on May 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Margaliet Ligtenstein, LCSW located?
The NPPES record lists a practice address at 1440 Whalley Ave, New Haven, CT, 06515. Phone: (203) 389-5599. Providers update this record themselves, so call before visiting.
How can I verify Margaliet Ligtenstein, LCSW's license?
NPPES lists Connecticut license number 00800, as entered by the provider. Search the Connecticut 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.