Active NPI
Andrea C Longden, FNP
- Family Nurse Practitioner
- Mount Kisco, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- F430116
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
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
Practice addresses (Care Compare)
300 Community Dr
Manhasset, NY 11030-3816
Phone (516) 562-3058
Hospital & facility affiliations
- Northern Westchester Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 93.07 of 100
- 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
| License | State | Type | Specialty |
|---|---|---|---|
| F430116 | NY | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Emergency Medical Association of New York PC | Current | Accepting new patients | |
| North Shore-Lij Medical PC | Current | 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
- 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.
-
- Urology Physician
- Great Neck, NY
- NPI 1053688572
-
- Emergency Medicine Physician
- Cortlandt Manor, NY
- NPI 1952356347
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Medicare Defined Swing Bed Hospital Unit
- Mount Kisco, NY
- NPI 1396178356
-
- General Acute Care Hospital
- Mount Kisco, NY
- NPI 1912992215
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.