Individual provider Active NPI

Andrea C Longden, FNP

  • Family Nurse Practitioner
  • Mount Kisco, NY
National Provider Identifier
1114912409
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
F430116 Issued in NY
Practice address
400 E Main St
Northern Westchester Hospital Emergency Department
Mount Kisco, NY 10549-3417
Phone
(914) 666-1254
Fax
(914) 666-1931
NPI assigned
Sep 13, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X F430116 NY Primary

Addresses

Primary practice location

400 E Main St
Northern Westchester Hospital Emergency Department
Mount Kisco, NY 10549-3417

Mailing address

400 E Main St
Northern Westchester Hospital Emergency Department
Mount Kisco, NY 10549-3417
Phone (914) 666-1254

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
I20060925000047 NY Practitioner - Nurse Practitioner 4587669676 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
North Shore-Lij Medical PCGroup PAC ID 3375701568, 6,374 clinicians

Practice addresses (Care Compare)

300 Community Dr
Manhasset, NY 11030-3816
Phone (516) 562-3058

Hospital & facility affiliations

  • Northern Westchester Hospital Hospital, Mount Kisco, NY, CCN 330162

Merit-based Incentive Payment System (MIPS)

Final score
93.07 of 100Reported as apm
Quality
79.77
Promoting interoperability
88.77
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
F430116NYMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Emergency Medical Association of New York PC CurrentSince Feb 12, 2017 Accepting new patients
North Shore-Lij Medical PC CurrentSince Aug 13, 2017 Accepting new patients

Locations

480 Bedford Rd
Chappaqua, NY 10514
Phone (866) 997-5781

1980 Crompond Rd
Cortlandt Mnr, NY 10567
Phone (914) 734-3600

400 E Main St
Mount Kisco, NY 10549
Phone (914) 666-1200

300 Community Dr
Plandome, NY 11030

Networks

  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H9678

Interoperability endpoints

  • Direct secure messaging: alongden23793@northwell.direct-ci.com

Organizations & group practices 2

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

Hospital & facility affiliations 2

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": "1126569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1114912409",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 E MAIN ST",
            "address_2": "NORTHERN WESTCHESTER HOSPITAL EMERGENCY DEPARTMENT",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105493417",
            "telephone_number": "914-666-1254",
            "fax_number": "914-666-1931"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 E MAIN ST",
            "address_2": "NORTHERN WESTCHESTER HOSPITAL EMERGENCY DEPARTMENT",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105493417",
            "telephone_number": "914-666-1254",
            "fax_number": "914-666-1931"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LONGDEN",
        "first_name": "ANDREA",
        "middle_name": "C",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "NY",
            "license": "F430116",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mount Kisco, NY

Sources for this page

Verify at the official NPI Registry.