Margaliet Ligtenstein, LCSW
NPI 1558596999 · Clinical Social Worker · New Haven, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaliet Ligtenstein, LCSW is a Clinical Social Worker provider in New Haven, CT (NPI 1558596999).
Provider details
- NPI number
- 1558596999
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 00800 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-28
- Last updated
- 2019-09-23
Frequently asked questions
- What is Margaliet Ligtenstein's NPI number?
- Margaliet Ligtenstein's National Provider Identifier (NPI) is 1558596999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaliet Ligtenstein's specialty?
- Margaliet Ligtenstein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Margaliet Ligtenstein located?
- Margaliet Ligtenstein's practice location on file with NPPES is 1440 Whalley Ave, New Haven, CT 06515-1144.
- What is Margaliet Ligtenstein's phone number?
- The practice phone number listed in the NPPES registry for Margaliet Ligtenstein is (203) 389-5599.
- Does Margaliet Ligtenstein accept Medicare?
- Margaliet Ligtenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaliet Ligtenstein's NPI active?
- Yes — Margaliet Ligtenstein's NPI (1558596999) is active in the NPPES registry as of the last update on 2019-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.