NPIMap

Individual provider Active NPI

Gary A. Gwertzman, M.D.

  • Vascular Surgery Physician
  • Brooklyn, NY
National Provider Identifier
1871571679
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular Surgery PhysicianTaxonomy code 2086S0129X
License
193557-1 Issued in NY
Practice address
450 Clarkson Ave
Suite H
Brooklyn, NY 11203-2056
Phone
(718) 270-1035
Fax
(718) 270-2826
NPI assigned
Jan 3, 2006
Last updated
Jul 13, 2026By the provider in NPPES
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
Vascular Surgery Physician 2086S0129X 193557-1 NY Primary

Addresses

Primary practice location

450 Clarkson Ave
Suite H
Brooklyn, NY 11203-2056

Mailing address

450 Clarkson Ave
Box 1262
Brooklyn, NY 11203-2056
Phone (718) 270-8867

Other identifiers 1

IdentifierTypeStateIssuer
O1441501MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20060620000154 NY Practitioner - Vascular SurgeryPractitioner - General Surgery 2860404522 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Vascular SurgeryAlso: General Surgery
Education
Albert Einstein College of Medicine of Yeshiva University, 1991
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1 Gustave L Levy PL
New York, NY 10029-6504
Phone (212) 241-6500

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Varicose vein removal16
Leg revascularization (restoring blood flow)36
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
193557-1NYMDVascular Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai CurrentSince Jan 1, 2016 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jan 1, 2016 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jan 17, 2018 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Jan 17, 2018 Accepting new patients
Exclusive Family Medical Care PC PastSince Nov 13, 2018 Accepting new patients
University Physicians of Brooklyn, Inc Past Accepting new patients
Icahn School of Medicine at Mount Sinai Past Accepting new patients
Beth Israel Medical Center Past Accepting new patients
Prime Fitness Physical Therapy PC PastSince Nov 1, 2007 Accepting new patients
University Physicians of Brooklyn, Inc. Vascular Surgery Past Accepting new patients
Weill Medical College of Cornell Past Accepting new patients

Locations

3131 Kings Hwy
Ste A7
Brooklyn, NY 11234
Phone (718) 360-9370

10 Union Sq E
New York, NY 10003
Phone (212) 253-6800

10 Union Sq E
Ste 2P
New York, NY 10003
Phone (212) 844-8200

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

5 E 98th St
Fl 5
New York, NY 10029
Phone (212) 241-8234

Networks

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

Organizations & group practices 11

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

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": "1136246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1871571679",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE",
            "address_2": "BOX 1262",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032056",
            "telephone_number": "718-270-8867",
            "fax_number": "718-270-1794"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE",
            "address_2": "SUITE H",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032056",
            "telephone_number": "718-270-1035",
            "fax_number": "718-270-2826"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GWERTZMAN",
        "first_name": "GARY",
        "middle_name": "A.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "NY",
            "license": "193557-1",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "O1441501",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Brooklyn, NY

Sources for this page

Verify at the official NPI Registry.