Individual provider Active NPI

Kelsey Hope Chiellini, PA-C

  • Physician Assistant
  • Roslyn, NY
National Provider Identifier
1508604877
Registry record updated Apr 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
100 Port Washington Blvd
Roslyn, NY 11576-1347
Phone
(516) 562-6000
NPI assigned
Jul 19, 2024
Last updated
Apr 19, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 19, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X NU Primary

Addresses

Primary practice location

100 Port Washington Blvd
Roslyn, NY 11576-1347

Mailing address

100 Port Washington Blvd
Roslyn, NY 11576-1347

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240924004076 NY Practitioner - Physician Assistant 1153862644

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Samaritan Medical Services PCGroup PAC ID 7012016009, 341 clinicians

Practice addresses (Care Compare)

100 Port Washington Blvd
Roslyn, NY 11576-1347
Phone (516) 325-7520

1000 Montauk Hwy
West Islip, NY 11795-4927
Phone (516) 705-2689

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
032445NYMDPharmacist

Interoperability endpoints

  • Direct secure messaging: kelsey.chiellini.1@2983.direct.athenahealth.com

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1721347200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776556800000",
    "number": "1508604877",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 PORT WASHINGTON BLVD",
            "city": "ROSLYN",
            "state": "NY",
            "postal_code": "115761347"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 PORT WASHINGTON BLVD",
            "city": "ROSLYN",
            "state": "NY",
            "postal_code": "115761347",
            "telephone_number": "516-562-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHIELLINI",
        "first_name": "KELSEY",
        "middle_name": "HOPE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-07-19",
        "last_updated": "2026-04-19",
        "certification_date": "2026-04-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Roslyn, NY

Sources for this page

Verify at the official NPI Registry.