Individual provider Active NPI

John-Ross Harrison

  • Adult Psychiatric/Mental Health Registered Nurse
  • Brooklyn, NY
National Provider Identifier
1841180858
Registry record updated Jul 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adult Psychiatric/Mental Health Registered NurseTaxonomy code 163WP0809X
License
816091 Issued in NY
Practice address
685 Clarkson Ave
Brooklyn, NY 11203
Phone
(718) 221-7700
NPI assigned
Jul 9, 2025
Sex
Unspecified or another gender identity
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Psychiatric/Mental Health Registered NurseGroup: 193400000X SINGLE SPECIALTY GROUP 163WP0809X 816091 NY Primary

Addresses

Primary practice location

685 Clarkson Ave
Brooklyn, NY 11203

Mailing address

401 E 23Rd St Apt 7R
Brooklyn, NY 11226-6960
Phone (347) 243-6647

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
816091NYMDAdult Psychiatric/Mental Health Registered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1752019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752019200000",
    "number": "1841180858",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "401 E 23RD ST APT 7R",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112266960",
            "telephone_number": "347-243-6647"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "685 CLARKSON AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11203",
            "telephone_number": "718-221-7700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARRISON",
        "first_name": "JOHN-ROSS",
        "sole_proprietor": "YES",
        "sex": "X",
        "enumeration_date": "2025-07-09",
        "last_updated": "2025-07-09",
        "certification_date": "2025-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WP0809X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Registered Nurse, Psychiatric/Mental Health, Adult",
            "state": "NY",
            "license": "816091",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Brooklyn, NY

Sources for this page

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