Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. DAVID A MARLEY LDN
NPI 1437122132
Nutritionist in Haverhill, MA

Q: What is David Marley's NPI number?

The NPI number for David Marley is 1437122132. It was assigned to this individual provider in the NPPES registry on February 12, 2006.

Q: What is David Marley's specialty?

The primary specialty registered for this NPI is Nutritionist with taxonomy code 133N00000X.

Q: When was this NPI record last updated?

The NPPES record for David Marley was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 12, 2006

40 SCHOOL ST, HAVERHILL, MA 01830(978) 521-0632 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Mr. David A Marley Ldn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. DAVID A MARLEY LDN (NPI 1437122132) is an individual nutritionist in Haverhill, Massachusetts, licensed in Massachusetts (2395) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1437122132

Entity TypeIndividualMale

Primary Taxonomy133N00000X

Provider Legal NameMR. DAVID A MARLEYCredential: LDN

Location Address40 SCHOOL STHaverhill, MA 01830-6306

Mailing Address40 School StHaverhill, MA 01830-6306 · (978) 521-0632

Phone(978) 521-0632

Sole ProprietorNo

Enumeration DateFebruary 12, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1437122132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNutritionistDietary & Nutritional Service Providers

Taxonomy Code133N00000X

License✔ Licensed in MA · 2395

Definition

A specialist in adapting and applying food and nutrient knowledge to the solution of food and nutritional problems, the control of disease, and the promotion of health. Nutritionists perform research, instruct groups and individuals about nutritional requirements, and assist people in developing meal patterns that meet their nutritional needs; (2) A nutritionist is someone who has completed undergraduate and/or graduate training in the discipline of nutrition without necessarily meeting the academic and experience requirements to qualify for the Registered Dietitian designation.

40 SCHOOL ST, Haverhill, MA 01830

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Marley's NPI number?

The NPI number for David Marley is 1437122132. It was assigned to this individual provider in the NPPES registry on February 12, 2006.

Where is David Marley located?

David Marley practices at 40 School St, Haverhill, MA 01830. The listed phone number is (978) 521-0632.

What is David Marley's specialty?

The primary specialty registered for this NPI is Nutritionist with taxonomy code 133N00000X.

When was this NPI record last updated?

The NPPES record for David Marley was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.