What is David Marshall's NPI number?

David Marshall's National Provider Identifier (NPI) is 1669346847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Marshall's specialty?

David Marshall is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is David Marshall located?

David Marshall's practice location on file with NPPES is 25714 N 20th Ave, Phoenix, AZ 85085-8627.

What is David Marshall's phone number?

The practice phone number listed in the NPPES registry for David Marshall is (480) 490-8786.

Is David Marshall's NPI active?

Yes — David Marshall's NPI (1669346847) is active in the NPPES registry as of the last update on 2025-10-01.

IndividualActive

David Marshall, RN

NPI 1669346847 · Registered Nurse · Phoenix, AZ

David Marshall, RN is a Registered Nurse provider in Phoenix, AZ (NPI 1669346847).

Provider details

NPI number: 1669346847
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Male
Sole proprietor: No
License: RN197594 (AZ)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense RN197594 (AZ)
Nursing Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
Under 1 yr in 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.

Practice location

25714 N 20th Ave

Phoenix, AZ 85085-8627

Phone: (480) 490-8786

Street-level locationGet directions

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Mailing address