Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marianne Weiss

Clinical Social Worker in Quincy, MA · enumerated 2026 · practices at Gabriella Bergonzi Counseling LLC.

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

National Provider Identifier

1164381646

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Registry record

Entity type Individual (Type 1)

Name Marianne Weiss

Sex Female

Practice address 7 Seaport Dr Apt 310, Quincy, MA, 02171

Phone (617) 396-4581

Enumeration date Jan 20, 2026

Last updated in NPPES Jan 20, 2026

Taxonomy & licenses

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

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.

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Frequently asked questions

How do I verify Marianne Weiss's NPI record?

Cross-check NPI 1164381646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164381646 active?

Yes, as of the latest NPPES snapshot, NPI 1164381646 is active (record last updated 2026-01-20).

Other providers at this practice address

Browse all →

Gabriella Carroll Social Worker · Quincy, MA NPI 1902351240 Jennifer Saltmarsh Clinical Social Worker · Quincy, MA NPI 1225646987 Megan Schiloski Mental Health Counselor · Quincy, MA NPI 1457959793 Gabriella Bergonzi Counseling LLC Community/Behavioral Health Agency · Quincy, MA NPI 1417643438 Holly Banaian Clinical Social Worker · Quincy, MA NPI 1861228694

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-20.