Individual provider Active NPI

Holly Angela Tomasello, LMHC

  • Mental Health Counselor
  • Williamsville, NY
National Provider Identifier
1174292718
Registry record updated May 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
License
016612 Issued in NY
Practice address
5555 Main St Ste 1
Williamsville, NY 14221-5430
Phone
(716) 228-0401
Fax
(716) 219-1268
NPI assigned
Sep 8, 2021
Last updated
May 3, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Counselor 101YM0800X 016612 NY Primary

Addresses

Primary practice location

5555 Main St Ste 1
Williamsville, NY 14221-5430

Mailing address

5555 Main St Ste 1
Williamsville, NY 14221-5430
Phone (716) 282-0401

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
016612NYMDMental Health Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Horizon Health Services Inc PastSince Sep 1, 2021 Accepting new patients

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/HEGDAA

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1631059200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777766400000",
    "number": "1174292718",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5555 MAIN ST STE 1",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142215430",
            "telephone_number": "716-282-0401",
            "fax_number": "716-219-1268"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5555 MAIN ST STE 1",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142215430",
            "telephone_number": "716-228-0401",
            "fax_number": "716-219-1268"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOMASELLO",
        "first_name": "HOLLY",
        "middle_name": "ANGELA",
        "credential": "LMHC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-09-08",
        "last_updated": "2026-05-03",
        "certification_date": "2026-05-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "NY",
            "license": "016612",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Williamsville, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 3, 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.