Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Keystone Clinical Diagnostic LLC

Clinical Medical Laboratory in Melbourne, FL · enumerated 2026 · authorized official Rachel Cheung, President.

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

National Provider Identifier

1598609893

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Registry record

Entity type Organization (Type 2)

Legal business name Keystone Clinical Diagnostic LLC

Practice address 3034 Hummingbird Way, Melbourne, FL, 32940

Phone (267) 308-5058

Enumeration date Apr 16, 2026

Last updated in NPPES Apr 23, 2026

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Rachel Cheung

Title President

Phone (267) 308-5058

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 2026-04-23. Verify at npiregistry.cms.hhs.gov.

Where is Keystone Clinical Diagnostic LLC located?

The practice location on file with NPPES is in Melbourne, FL.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-23.