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Organization Active NPI

Johns Hopkins University

Doing business as Jhu - 620 Boulton St - Provider Type: 20 - Physician

  • Ophthalmology Physician
  • Bel Air, MD
National Provider Identifier
1982559977
Registry record updated Mar 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Jhu - 620 Boulton St - Provider Type: 20 - Physician
Practice address
620 Boulton St
Bel Air, MD 21014-4255
Phone
(410) 893-0480
NPI assigned
Mar 4, 2026
Last updated
Mar 4, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Mar 4, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207W00000X Primary

Addresses

Primary practice location

620 Boulton St
Bel Air, MD 21014-4255

Mailing address

6201 Greenleigh Ave
Middle River, MD 21220-2004
Phone (410) 933-6423

Other names 1

  • JHU - 620 BOULTON ST - PROVIDER TYPE: 20 - PHYSICIAN Doing business as

National Provider Directory

National Provider Directory
Tax ID family
Johns Hopkins Univ440 organizations share this tax ID, including this one

Organizations with this tax ID in the same state 20

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 20

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1772582400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1772582400000",
    "number": "1982559977",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-933-6423"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 BOULTON ST",
            "city": "BEL AIR",
            "state": "MD",
            "postal_code": "210144255",
            "telephone_number": "410-893-0480"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-03-04",
        "last_updated": "2026-03-04",
        "certification_date": "2026-03-04",
        "status": "A",
        "authorized_official_last_name": "GIARRATANO",
        "authorized_official_first_name": "NICHOLAS",
        "authorized_official_title_or_position": "DIRECTOR, PROVIDER ENROLLMENT",
        "authorized_official_telephone_number": "410-933-0000"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Ophthalmology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "JHU - 620 BOULTON ST - PROVIDER TYPE: 20 - PHYSICIAN",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Bel Air, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.