Organization Active NPI

Leo Sullivan Mental Health Counselor P.C.

  • Mental Health Counselor
  • Hicksville, NY
National Provider Identifier
1740082981
Registry record updated Aug 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
Legal business name
LEO SULLIVAN MENTAL HEALTH COUNSELOR P.C.
Doing business as
LS Performance Mental Health Counseling
Practice address
100 Duffy Ave
Hicksville, NY 11801-3636
Phone
(516) 428-9881
NPI assigned
Mar 26, 2025
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 4, 2025

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

Authorized official

Name
Mr. Leo Sullivan, LMHCNPI 1538981352
Title
Sports and Mental Performance Couns
Phone
(516) 428-9881

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health CounselorGroup: 193400000X SINGLE SPECIALTY GROUP 101YM0800X Primary

Addresses

Primary practice location

100 Duffy Ave
Hicksville, NY 11801-3636

Mailing address

19 Caroline CT
North Babylon, NY 11703-1823
Phone (516) 428-9881

Other names 1

  • LS Performance Mental Health Counseling Doing business as

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1742947200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1754265600000",
    "number": "1740082981",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 CAROLINE CT",
            "city": "NORTH BABYLON",
            "state": "NY",
            "postal_code": "117031823",
            "telephone_number": "516-428-9881"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 DUFFY AVE",
            "city": "HICKSVILLE",
            "state": "NY",
            "postal_code": "118013636",
            "telephone_number": "516-428-9881"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "LEO SULLIVAN MENTAL HEALTH COUNSELOR P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-03-26",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A",
        "authorized_official_last_name": "SULLIVAN",
        "authorized_official_first_name": "LEO",
        "authorized_official_title_or_position": "SPORTS AND MENTAL PERFORMANCE COUNS",
        "authorized_official_telephone_number": "516-428-9881",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_credential": "LMHC"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "LS Performance Mental Health Counseling",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "LS Performance Mental Health Counseling",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Hicksville, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 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.