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Johns Hopkins University

Rheumatology Physician in Timonium, MD · enumerated 2025 · authorized official Nicholas Giarratano, Director, Provider Enrollment.

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

National Provider Identifier

1609736552

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Registry record

Entity type Organization (Type 2)
Legal business name Johns Hopkins University
Practice address 2360 W Joppa Rd Ste 320, Timonium, MD, 21093
Phone (410) 616-7596
Enumeration date Nov 13, 2025
Last updated in NPPES Nov 13, 2025

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Nicholas Giarratano
Title Director, Provider Enrollment
Phone (410) 933-0000

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

What is the NPI number for Johns Hopkins University?
The NPI for Johns Hopkins University is 1609736552, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Johns Hopkins University?
NPPES lists Nicholas Giarratano (Director, Provider Enrollment) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-13.