Individual provider Active NPI

Kenneth Lyle Flax

  • Anesthesiology Physician
  • New York, NY
National Provider Identifier
1215354485
Registry record updated Aug 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
292472 Issued in NY
Practice address
1 Gustave L Levy PL
New York, NY 10029-6504
Phone
(212) 987-3100
NPI assigned
Mar 25, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 18, 2025

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 292472 NY Primary

Addresses

Primary practice location

1 Gustave L Levy PL
New York, NY 10029-6504

Mailing address

PO Box 28082
New York, NY 10087-8082
Phone (212) 987-3100

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
I20180612002570 NY Practitioner - Anesthesiology 2769737915 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Icahn School of Medicine at Mount Sinai, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

16 W 25TH St
New York, NY 10010-3450
Phone (212) 516-8211

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Fpa Hospital Based CurrentSince Jul 1, 2019 Accepting new patients
Weill Medical College of Cornell Anesthesiology CurrentSince Jul 1, 2018 Accepting new patients
Weill Medical College of Cornell CurrentSince Jul 1, 2018 Accepting new patients
Icahn School of Medicine at Mount Sinai Anesthesiology CurrentSince Oct 1, 2024 Accepting new patients
Fpa Hospital Based Current Accepting new patients
Fpa Hospital Based Anesthesiology CurrentSince Jul 1, 2019 Accepting new patients

Locations

170 William St
New York, NY 10038
Phone (212) 238-0100

16 W 25th St
New York, NY 10010
Phone (212) 516-8211

619 W 54th St
Fl 6
New York, NY 10019
Phone (212) 231-7778

310 E 14th St
New York, NY 10003
Phone (212) 979-4000

787 11th Ave
Fl 6
New York, NY 10019
Phone (212) 516-8204

16 W 25th St
#2
New York, NY 10010
Phone (212) 516-8211

1176 5th Ave
New York, NY 10029
Phone (212) 241-6237

525 E 68th St
#585
New York, NY 10065
Phone (212) 746-2059

Networks

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

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1395705600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755475200000",
    "number": "1215354485",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 28082",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100878082",
            "telephone_number": "212-987-3100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 GUSTAVE L LEVY PL",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100296504",
            "telephone_number": "212-987-3100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLAX",
        "first_name": "KENNETH",
        "middle_name": "LYLE",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-03-25",
        "last_updated": "2025-08-18",
        "certification_date": "2025-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "292472",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.