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

DAVID ALAN MARSHALL RN
NPI 1669346847
Nurse Practitioner - Acute Care in Phoenix, AZ

Q: What is David Marshall's NPI number?

The NPI number for David Marshall is 1669346847. It was assigned to this individual provider in the NPPES registry on October 1, 2025.

Q: What is David Marshall's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Q: When was this NPI record last updated?

The NPPES record for David Marshall was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 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 October 01, 2025

25714 N 20TH AVE, PHOENIX, AZ 85085(480) 490-8786 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About David Alan Marshall Rn NPPES

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

DAVID ALAN MARSHALL RN (NPI 1669346847) is an individual acute care provider in Phoenix, Arizona, licensed in Arizona (343159) and active in the NPI registry since October 2025.

NPPES Registry Identity

NPI1669346847

Entity TypeIndividualMale

Primary Taxonomy363LA2100X

Provider Legal NameDAVID ALAN MARSHALLCredential: RN

Location Address25714 N 20TH AVEPhoenix, AZ 85085-8627

Mailing Address25714 N 20th AvePhoenix, AZ 85085-8627 · (480) 490-8786

Phone(480) 490-8786

Sole ProprietorNo

Enumeration DateOctober 1, 2025

Last NPPES UpdateJuly 23, 2026

NPPES CertifiedJuly 23, 2026

✔ NPI 1669346847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2100X

License✔ Licensed in AZ · 343159

Also ListedRegistered NurseTaxonomy 163W00000X · License RN197594 (AZ)

25714 N 20TH AVE, Phoenix, AZ 85085

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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 Marshall's NPI number?

The NPI number for David Marshall is 1669346847. It was assigned to this individual provider in the NPPES registry on October 1, 2025.

Where is David Marshall located?

David Marshall practices at 25714 N 20th Ave, Phoenix, AZ 85085. The listed phone number is (480) 490-8786.

What is David Marshall's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

When was this NPI record last updated?

The NPPES record for David Marshall was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 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.