Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Johns Hopkins University School of Medicine

Clinical Medical Laboratory in Baltimore, MD · enumerated 2007 · authorized official Robert Hamilton, Director, Jhu Daci Reference Lab.

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

National Provider Identifier

1467652800

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Registry record

Entity type Organization (Type 2)

Legal business name Johns Hopkins University School of Medicine

Practice address 5501 Hopkins Bayview Cir, Room 1a20, Jhu Asthma/Allergy Center, Baltimore, MD, 21224

Phone (410) 550-2029

Fax (410) 550-2030

Enumeration date Jul 24, 2007

Last updated in NPPES Jul 24, 2007

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Robert Hamilton

Title Director, Jhu Daci Reference Lab

Phone (410) 550-2031

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 Johns Hopkins University School of Medicine located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-24. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-24.