Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Landmark Exams

Q: What is the NPI number for Landmark Exams?

The NPI for Landmark Exams is 1588902456, a Type 2 (organization) record in the CMS NPPES registry.

Independent Medical Examiner Physician in Austin, TX · enumerated 2013 · authorized official Leon Stearns, Director of Operations.

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

National Provider Identifier

1588902456

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Registry record

Entity type Organization (Type 2)

Legal business name Landmark Exams

Practice address 5725 W Highway 290 Ste 202, Austin, TX, 78735

Phone (512) 494-4219

Enumeration date Jan 28, 2013

Last updated in NPPES Jun 12, 2014

Taxonomy & classification

202C00000X Independent Medical Examiner Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Leon Stearns

Title Director of Operations

Phone (512) 970-8490

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 Landmark Exams?

The NPI for Landmark Exams is 1588902456, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Landmark Exams?

NPPES lists Leon Stearns (Director of Operations) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-12.