Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Genedx LLC

Clinical Medical Laboratory in Gaithersburg, MD · enumerated 2006 · authorized official Christine Mcgrogan, Payor Credentialing Specialist.

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

National Provider Identifier

1487632998

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Registry record

Entity type Organization (Type 2)

Legal business name Genedx LLC

Other name <Unavail>

Practice address 205 & 207 Perry Pkwy, Gaithersburg, MD, 20877

Phone (301) 519-2100

Fax (201) 421-2010

Enumeration date Jan 4, 2006

Last updated in NPPES Jan 27, 2026

Taxonomy & classification

170100000X Ph.D. Medical Genetics Other Service Providers · License 870020 Secondary

291U00000X Clinical Medical Laboratory Laboratories · License 953 (MD) Primary

Authorized official

Name Christine Mcgrogan

Title Payor Credentialing Specialist

Phone (240) 658-0686

Other identifiers

Identifier	Type	State	Issuer
21D0969951	Other	-	CMS CLIA CERTIFICATION
953	Other	MD	MARYLAND STATE LICENSE

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

Where is Genedx LLC located?

The practice location on file with NPPES is in Gaithersburg, MD.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-01-27. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-27.