Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

1 Corp Diagnostics

Q: What is the NPI number for 1 Corp Diagnostics?

The NPI for 1 Corp Diagnostics is 1932997681, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in Greensboro, NC · enumerated 2025 · authorized official Timothy Holliday, Chief Executive Officer.

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

National Provider Identifier

1932997681

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Registry record

Entity type Organization (Type 2)

Legal business name 1 Corp Diagnostics

Practice address 2806 Randleman Rd Ste D, Greensboro, NC, 27406

Phone (336) 500-8026

Fax (336) 900-0159

Enumeration date Apr 30, 2025

Last updated in NPPES Apr 30, 2025

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Timothy Holliday

Title Chief Executive Officer

Phone (336) 500-8026

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

Who is the authorized official for 1 Corp Diagnostics?

NPPES lists Timothy Holliday (Chief Executive Officer) as the authorized official for this organization.

What is the NPI number for 1 Corp Diagnostics?

The NPI for 1 Corp Diagnostics is 1932997681, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-30.