NPIMap

Organization Active NPI

Johns Hopkins University

  • Addiction (Substance Use Disorder) Counselor
  • Baltimore, MD
National Provider Identifier
1013273838
Registry record updated Apr 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Johns Hopkins University
Practice address
1029 E Baltimore St
Baltimore, MD 21202-4705
Phone
(410) 550-7680
NPI assigned
Apr 5, 2012
Last updated
Apr 9, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 9, 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 3

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) CounselorGroup: 193200000X MULTI-SPECIALTY GROUP 101YA0400X Primary
Professional CounselorGroup: 193200000X MULTI-SPECIALTY GROUP 101YP2500X
Clinical Social WorkerGroup: 193200000X MULTI-SPECIALTY GROUP 1041C0700X

Addresses

Primary practice location

1029 E Baltimore St
Baltimore, MD 21202-4705

Mailing address

6201 Greenleigh Ave
Baltimore, MD 21220-2004
Phone (410) 933-4853

Other practice location 1

600 N Wolfe St
Baltimore, MD 21287-0005
Phone (410) 955-5000

Other names 1

  • Johns Hopkins University Doing business as

National Provider Directory

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

Organizations with this tax ID in the same state 16

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

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1333584000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1775692800000",
    "number": "1013273838",
    "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": "410-933-4853"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1029 E BALTIMORE ST",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212024705",
            "telephone_number": "410-550-7680"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "600 N Wolfe St",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212870005",
            "country_code": "US",
            "telephone_number": "410-955-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-04-05",
        "last_updated": "2026-04-09",
        "certification_date": "2026-04-09",
        "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": "101YA0400X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Counselor, Professional",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Johns Hopkins University",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Baltimore, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.