Individual provider Active NPI

Andrew P. Duffy, MD

  • Anesthesiology Physician
  • Mount Kisco, NY
National Provider Identifier
1699775841
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
176103 Issued in NY
Practice address
400 E Main St
Northern Westchester Hospital
Mount Kisco, NY 10549-3417
Phone
(914) 666-1691
NPI assigned
Jul 29, 2005
Sex
Male
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
Anesthesiology Physician 207L00000X 176103 NY Primary

Addresses

Primary practice location

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

Mailing address

43 Kensico Dr
2ND Floor
Mount Kisco, NY 10549-1009
Phone (914) 666-8866

Other identifiers 1

IdentifierTypeStateIssuer
01364727MedicaidNY

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)
Enrolled
Credentials
Doctor of Medicine

NPI Registry JSON

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

{
    "created_epoch": "1122595200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1699775841",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "43 KENSICO DR",
            "address_2": "2ND FLOOR",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105491009",
            "telephone_number": "914-666-8866",
            "fax_number": "914-666-6777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 E MAIN ST",
            "address_2": "NORTHERN WESTCHESTER HOSPITAL",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105493417",
            "telephone_number": "914-666-1691"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFFY",
        "first_name": "ANDREW",
        "middle_name": "P.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-29",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "176103",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01364727",
            "state": "NY"
        }
    ],
    "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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.