Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Diligent Diagnostic

Clinical Medical Laboratory in Phoenix, AZ · enumerated 2016 · authorized official Michael Fitch, President.

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

National Provider Identifier

1104285071

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Registry record

Entity type Organization (Type 2)

Legal business name Diligent Diagnostic

Practice address 11051 N 19th Ave, Phoenix, AZ, 85029

Phone (702) 415-3716

Fax (702) 479-1793

Enumeration date Feb 19, 2016

Last updated in NPPES Feb 19, 2016

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Michael Fitch

Title President

Phone (702) 415-3716

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-02-19. Verify at npiregistry.cms.hhs.gov.

Where is Diligent Diagnostic located?

The practice location on file with NPPES is in Phoenix, AZ.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-19.