What is David Marley's NPI number?

David Marley's National Provider Identifier (NPI) is 1437122132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Marley's specialty?

David Marley is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).

Where is David Marley located?

David Marley's practice location on file with NPPES is 40 School St, Haverhill, MA 01830-6306.

What is David Marley's phone number?

The practice phone number listed in the NPPES registry for David Marley is (978) 521-0632.

Is David Marley's NPI active?

Yes — David Marley's NPI (1437122132) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

David Marley, LDN

NPI 1437122132 · Nutritionist · Haverhill, MA

David Marley, LDN is a Nutritionist provider in Haverhill, MA (NPI 1437122132).

Provider details

NPI number: 1437122132
Entity type: Individual
Primary specialty: NutritionistDietary & Nutritional Service Providers
Credential: LDN
Sex: Male
License: 2395 (MA)

Practice location

40 School St

Haverhill, MA 01830-6306

Phone: (978) 521-0632

Street-level locationGet directions

More MA providers

Mailing address

40 School St

Haverhill, MA 01830-6306

Specialties & taxonomies

NutritionistPrimary133N00000XLicense 2395 (MA)
Dietary & Nutritional Service Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-02-12
Last updated: 2007-07-08

Frequently asked questions

What is David Marley's NPI number?: David Marley's National Provider Identifier (NPI) is 1437122132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is David Marley's specialty?: David Marley is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).
Where is David Marley located?: David Marley's practice location on file with NPPES is 40 School St, Haverhill, MA 01830-6306.
What is David Marley's phone number?: The practice phone number listed in the NPPES registry for David Marley is (978) 521-0632.
Is David Marley's NPI active?: Yes — David Marley's NPI (1437122132) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions