Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Radix Diagnostics LLC

Q: What is the NPI number for Radix Diagnostics LLC?

The NPI for Radix Diagnostics LLC is 1891325288, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in Scottsdale, AZ · enumerated 2020 · authorized official Marie Zwiers, Clinical Care Coordinator.

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

National Provider Identifier

1891325288

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Registry record

Entity type Organization (Type 2)

Legal business name Radix Diagnostics LLC

Practice address 17301 N Perimeter Dr Ste 100, Scottsdale, AZ, 85255

Phone (602) 857-8378

Enumeration date Jan 24, 2020

Last updated in NPPES Jan 24, 2020

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Marie Zwiers

Title Clinical Care Coordinator

Phone (830) 302-2753

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

What is the NPI number for Radix Diagnostics LLC?

The NPI for Radix Diagnostics LLC is 1891325288, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Radix Diagnostics LLC?

NPPES lists Marie Zwiers (Clinical Care Coordinator) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-24.