Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Serene Laboratories

Clinical Medical Laboratory in Washington, DC · enumerated 2011 · authorized official Dawn Harrison, Director.

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

National Provider Identifier

1134407521

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Registry record

Entity type Organization (Type 2)

Legal business name Serene Laboratories

Practice address 6323 Georgia Ave Nw, Suite 102, Washington, DC, 20011

Phone (202) 722-1502

Fax (866) 594-9940

Enumeration date Aug 2, 2011

Last updated in NPPES Aug 2, 2011

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Dawn Harrison

Title Director

Phone (202) 722-1502

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.

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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 2011-08-02. Verify at npiregistry.cms.hhs.gov.

Where is Serene Laboratories located?

The practice location on file with NPPES is in Washington, DC.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-02.