Individual provider Active NPI

William Anthony Lois, M.D

  • Vascular Surgery Physician
  • Brooklyn, NY
National Provider Identifier
1356453856
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular Surgery PhysicianTaxonomy code 2086S0129X
License
168499 Issued in NY
Practice address
5723 Avenue N
Brooklyn, NY 11234-4026
Phone
(718) 251-1111
Fax
(718) 251-2296
NPI assigned
Aug 31, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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 168499 NY Primary

Addresses

Primary practice location

5723 Avenue N
Brooklyn, NY 11234-4026

Mailing address

5723 Avenue N
Brooklyn, NY 11234-4026
Phone (718) 251-1111

Other identifiers 1

IdentifierTypeStateIssuer
01021250MedicaidNY

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
I20110113001036 NY Practitioner - General SurgeryPractitioner - Vascular Surgery 3971635491 Reassigns benefits to 1 organization
Practice locations: Brooklyn, NY

Care Compare profile

Medicare Care Compare
Specialty
General SurgeryAlso: Vascular Surgery
Education
Other, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Bronxcare Health SystemGroup PAC ID 3870404429, 335 clinicians

Practice addresses (Care Compare)

199 Mount Eden Pkwy
9 Health and Wellness Center
Bronx, NY 10457-7703
Phone (718) 901-8015

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Bronxcare Health System CurrentSince Sep 4, 2018 Accepting new patients
Bronxcare Health System CurrentSince Sep 4, 2018 Accepting new patients
North Shore-Lij Medical PC Past Accepting new patients
Bronxcare Health System Past Accepting new patients

Locations

1650 Grand Concourse
Bronx, NY 10457
Phone (718) 294-7104

Networks

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

Organizations & group practices 4

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 1

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": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1356453856",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5723 AVENUE N",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112344026",
            "telephone_number": "718-251-1111",
            "fax_number": "718-251-2496"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5723 AVENUE N",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112344026",
            "telephone_number": "718-251-1111",
            "fax_number": "718-251-2296"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOIS",
        "first_name": "WILLIAM",
        "middle_name": "ANTHONY",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "NY",
            "license": "168499",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01021250",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Brooklyn, NY

Sources for this page

Verify at the official NPI Registry.