Individual provider Active NPI

Konstantinos Alifieris, MD, PHD

  • Student in an Organized Health Care Education/Training Program
  • New York, NY
National Provider Identifier
1881459923
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X
Practice address
1468 Madison Ave
New York, NY 10029-6508
Phone
(212) 241-6500
NPI assigned
Feb 19, 2024
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 332963 NY
Student in an Organized Health Care Education/Training Program 390200000X Primary

Addresses

Primary practice location

1468 Madison Ave
New York, NY 10029-6508

Mailing address

1468 Madison Ave
New York, NY 10029-6508

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241107002758 NY Practitioner - General Surgery 4587198908 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Icahn School of Medicine at Mount SinaiGroup PAC ID 2264691070, 2,809 clinicians

Practice addresses (Care Compare)

5 E 98TH St
Box 1104
New York, NY 10029-6501
Phone (212) 241-8035

Hospital & facility affiliations

  • Mount Sinai Hospital Hospital, New York, NY, CCN 330024

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
332963NYMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai CurrentSince Oct 1, 2024 Accepting new patients
Icahn School of Medicine at Mount Sinai Surgery CurrentSince Oct 1, 2024 Accepting new patients

Locations

150 E 42nd St
New York, NY 10017
Phone (212) 661-8139

1468 Madison Ave
New York, NY 10029
Phone (212) 241-0440

5 E 98th St
#1104
New York, NY 10029
Phone (212) 241-0034

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 6

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": "1708300800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1881459923",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1468 MADISON AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100296508"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1468 MADISON AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100296508",
            "telephone_number": "212-241-6500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALIFIERIS",
        "first_name": "KONSTANTINOS",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2024-02-19",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NY",
            "license": "332963",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.