Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Linda Mass Psychotherapist LLC

Clinical Social Worker in Livingston, NJ · enumerated 2014 · authorized official Linda Mass, Practitioner/Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1952799116

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Registry record

Entity type Organization (Type 2)

Legal business name Linda Mass Psychotherapist LLC

Practice address 1 Troy Dr, Livingston, NJ, 07039

Phone (973) 992-8078

Fax (973) 992-1820

Enumeration date Dec 22, 2014

Last updated in NPPES Dec 22, 2014

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Primary

Authorized official

Name Linda Mass

Title Practitioner/Owner

Phone (973) 992-8078

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Linda Mass Psychotherapist LLC located?

The practice location on file with NPPES is in Livingston, NJ.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-12-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-22.