Individual provider Active NPI

Robert Feldman Slifkin, M.D.

  • Nephrology Physician
  • Oyster Bay, NY
National Provider Identifier
1366491904
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
110781 Issued in NY
Practice address
1234 The KNL
Oyster Bay, NY 11771-4400
Phone
(516) 626-8947
Fax
(516) 626-0496
NPI assigned
May 10, 2006
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
Nephrology Physician 207RN0300X 110781 NY Primary

Addresses

Primary practice location

1234 The KNL
Oyster Bay, NY 11771-4400

Mailing address

1234 The KNL
Oyster Bay, NY 11771-4400
Phone (516) 626-8947

Other identifiers 1

IdentifierTypeStateIssuer
00198150MedicaidNY

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
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
110781NYMDNephrology Physician

NPI Registry JSON

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

{
    "created_epoch": "1147219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1366491904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1234 THE KNL",
            "city": "OYSTER BAY",
            "state": "NY",
            "postal_code": "117714400",
            "telephone_number": "516-626-8947",
            "fax_number": "516-626-0496"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1234 THE KNL",
            "city": "OYSTER BAY",
            "state": "NY",
            "postal_code": "117714400",
            "telephone_number": "516-626-8947",
            "fax_number": "516-626-0496"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLIFKIN",
        "first_name": "ROBERT",
        "middle_name": "FELDMAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-10",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "NY",
            "license": "110781",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00198150",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Oyster Bay, 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.