Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julia B. Marsh

Q: What is the NPI number for Julia Marsh?

The National Provider Identifier (NPI) for Julia Marsh is 1659052249, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Middletown, CT · enumerated 2023.

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

National Provider Identifier

1659052249

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Registry record

Entity type Individual (Type 1)

Name Julia B. Marsh

Sex Female

Practice address 230 Main Street Ext, Middletown, CT, 06457

Phone (860) 343-5300

Enumeration date Jul 27, 2023

Last updated in NPPES Jul 27, 2023

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 3879 (CT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Julia Marsh practice?

The practice location on file with NPPES is in Middletown, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Julia Marsh?

The National Provider Identifier (NPI) for Julia Marsh is 1659052249, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-27.