NPIMap

Organization Active NPI

Johns Hopkins University

Doing business as Jhu - 10710 Charter Dr FL 4 - Provider Type: 20

  • Internal Medicine Physician
  • Columbia, MD
National Provider Identifier
1417817198
Registry record updated Nov 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Jhu - 10710 Charter Dr FL 4 - Provider Type: 20
Practice address
10710 Charter Dr FL 4
Columbia, MD 21044-3128
Phone
(410) 997-7979
NPI assigned
Nov 14, 2025
Last updated
Nov 14, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 14, 2025

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
Internal Medicine Physician 207R00000X Primary

Addresses

Primary practice location

10710 Charter Dr FL 4
Columbia, MD 21044-3128

Mailing address

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

Other names 1

  • JHU - 10710 CHARTER DR FL 4 - PROVIDER TYPE: 20 Doing business as

National Provider Directory

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

Organizations with this tax ID in the same state 24

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

View all 24

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

  • Calvin Lee, MD
    • Cardiovascular Disease Physician
    • Columbia, MD
    • NPI 1467980474

    Internal Medicine

    NPD

NPI Registry JSON

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

{
    "created_epoch": "1763078400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1763078400000",
    "number": "1417817198",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "BALTIMORE",
            "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": "10710 CHARTER DR FL 4",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210443128",
            "telephone_number": "410-997-7979"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-11-14",
        "last_updated": "2025-11-14",
        "certification_date": "2025-11-14",
        "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": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "JHU - 10710 CHARTER DR FL 4 - PROVIDER TYPE: 20",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Columbia, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 14, 2025; 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.