NPIMap

Organization Active NPI

Johns Hopkins University

Doing business as Jhu - Division 500

  • Psychiatry Physician
  • Baltimore, MD
National Provider Identifier
1891072286
Registry record updated Feb 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
Legal business name
JOHNS HOPKINS UNIVERSITY
Doing business as
Jhu - Division 500
Practice address
600 N Wolfe St
Baltimore, MD 21287-0005
Phone
(410) 955-6158
NPI assigned
Nov 14, 2011
Last updated
Feb 24, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
JOHNS HOPKINS UNIVERSITYAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Feb 24, 2026

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

Authorized official

Name
Nicholas Giarratano
Title
Manager Provider Enrollment Unit
Phone
(410) 933-0000

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X NU
Psychiatric/Mental Health Nurse Practitioner 363LP0808X NU
Psychiatry Physician 2084P0800X MD Primary

Addresses

Primary practice location

600 N Wolfe St
Baltimore, MD 21287-0005

Mailing address

PO Box 64260
Baltimore, MD 21264-4260

Other identifiers 2

IdentifierTypeStateIssuer
069787726MedicaidDC
269251100MedicaidMD

Other names 1

  • JHU - DIVISION 500 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
O20130604000197 DC Part B Supplier - Clinic/Group Practice 8921903147 Receives reassigned benefits from 26 practitioners
Practice locations: Bethesda, MD; Washington, DC

Other NPIs with the same Medicare PAC ID 11

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

National Provider Directory

National Provider Directory
Part of
Johns Hop Univ Inter Me

Ownership & related parties

All facility ownership & control disclosures 2

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Johns Hopkins Home Health ServicesBaltimore, MD, CCN 217081B Home health agency 5% Or Greater Indirect Ownership Interest (50%) Jun 6, 1990
Johns Hopkins Pediatrics at HomeBaltimore, MD, CCN 217131 Home health agency 5% Or Greater Direct Ownership Interest (30%)
5% Or Greater Indirect Ownership Interest (65%)		 Dec 7, 1992
Dec 7, 1992

Owned or controlled facilities with NPI records 2

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Practitioners & affiliated clinicians

Practitioners 154

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 154

NPI Registry JSON

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

{
    "created_epoch": "1321228800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771891200000",
    "number": "1891072286",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 64260",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212644260"
        },
        {
            "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": "410-955-6158"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHNS HOPKINS UNIVERSITY",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "JOHNS HOPKINS UNIVERSITY",
        "enumeration_date": "2011-11-14",
        "last_updated": "2026-02-24",
        "certification_date": "2026-02-24",
        "status": "A",
        "authorized_official_last_name": "GIARRATANO",
        "authorized_official_first_name": "NICHOLAS",
        "authorized_official_title_or_position": "MANAGER PROVIDER ENROLLMENT UNIT",
        "authorized_official_telephone_number": "410-933-0000"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MD",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "069787726",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "269251100",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "JHU - DIVISION 500",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "JHU - DIVISION 500",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.