Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

The Johns Hopkins Hospital

Q: What is the NPI number for The Johns Hopkins Hospital?

The NPI for The Johns Hopkins Hospital is 1225235591, a Type 2 (organization) record in the CMS NPPES registry.

Case Management Agency in Baltimore, MD · enumerated 2007 · authorized official Ronald Werthman, Vp Finance.

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

National Provider Identifier

1225235591

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Registry record

Entity type Organization (Type 2)

Legal business name The Johns Hopkins Hospital

Other name <Unavail>

Practice address 600 N Wolfe St, Meyer 144d, Baltimore, MD, 21287

Phone (410) 955-2004

Fax (410) 955-5795

Enumeration date Jun 29, 2007

Last updated in NPPES Dec 10, 2010

Taxonomy & classification

251B00000X Case Management Agency Agencies · License 30034 (MD) Primary

Authorized official

Name Ronald Werthman

Title Vp Finance

Phone (410) 955-6552

Other identifiers

Identifier	Type	State	Issuer
268933200	Medicaid	MD	-

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 The Johns Hopkins Hospital?

NPPES lists Ronald Werthman (Vp Finance) as the authorized official for this organization.

What is the NPI number for The Johns Hopkins Hospital?

The NPI for The Johns Hopkins Hospital is 1225235591, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-10.