Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Rebecca A Marley, LDN

Nutritionist in Haverhill, MA · enumerated 2006.

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

National Provider Identifier

1790757342

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Registry record

Entity type Individual (Type 1)

Name Mrs. Rebecca A Marley

Credential LDN

Sex Female

Practice address 2 Water St, Haverhill, MA, 01830

Phone (978) 372-0377

Enumeration date Feb 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License NU2419 (MA) 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

What is the NPI number for Rebecca Marley?

The National Provider Identifier (NPI) for Rebecca Marley is 1790757342, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rebecca Marley practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.