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Johns Hopkins University

Optometrist in Arlington, VA · enumerated 2025 · authorized official Nicholas Giarratano, Director P.E.U..

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

National Provider Identifier

1316750508

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Registry record

Entity type Organization (Type 2)
Legal business name Johns Hopkins University
Other name <Unavail>
Practice address 4102 Wilson Blvd, Arlington, VA, 22203
Phone (703) 462-1777
Fax (703) 657-1192
Enumeration date Jan 30, 2025
Last updated in NPPES Apr 7, 2025

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Nicholas Giarratano
Title Director P.E.U.
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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Johns Hopkins University?
Johns Hopkins University is registered in NPPES as a Optometrist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-07.