NPIMap

Organization Active NPI

Johns Hopkins University

Doing business as Johns Hopkins University/Obesity Medicine

  • Obesity Medicine (Internal Medicine) Physician
  • Baltimore, MD
National Provider Identifier
1487405205
Registry record updated Dec 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obesity Medicine (Internal Medicine) PhysicianTaxonomy code 207RB0002X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Johns Hopkins University/Obesity Medicine
Practice address
600 N Wolfe St
Baltimore, MD 21287-0005
Phone
(410) 955-5000
NPI assigned
Mar 29, 2024
Last updated
Dec 3, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 3, 2025

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

Authorized official

Name
Nicholas Giarratano
Title
Authorized Official
Phone
(410) 933-0000

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obesity Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RB0002X Primary

Addresses

Primary practice location

600 N Wolfe St
Baltimore, MD 21287-0005

Mailing address

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

Other names 1

  • Johns Hopkins University/Obesity Medicine Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20031215000719 MD Part B Supplier - Clinic/Group Practice 8921903147 Receives reassigned benefits from 4,764 practitioners
This NPI is an additional NPI on the enrollment
O20130204000276 DC Part B Supplier - Clinic/Group Practice 4981745098 Receives reassigned benefits from 30 practitioners
3 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Arlington, VA; Bethesda, MD; Washington, DC

Other NPIs on the same Medicare enrollment 3

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

National Provider Directory

National Provider Directory
Tax ID family
Johns Hopkins Univ439 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 42

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.

View all 42

NPI Registry JSON

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

{
    "created_epoch": "1711670400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1764720000000",
    "number": "1487405205",
    "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",
            "fax_number": "410-500-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 N WOLFE ST",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212870005",
            "telephone_number": "410-955-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-03-29",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A",
        "authorized_official_last_name": "GIARRATANO",
        "authorized_official_first_name": "NICHOLAS",
        "authorized_official_title_or_position": "AUTHORIZED OFFICIAL",
        "authorized_official_telephone_number": "410-933-0000"
    },
    "taxonomies": [
        {
            "code": "207RB0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Obesity Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Johns Hopkins University/Obesity Medicine",
            "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 Dec 3, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.