Individual provider Active NPI

Wendy Sadkin, LCSW

  • Social Worker
  • Williamsville, NY
National Provider Identifier
1003999434
Registry record updated Feb 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
R0494921 Issued in NY
Practice address
8612 Main St Ste 1
Williamsville, NY 14221-7462
Phone
(716) 458-0055
Fax
(716) 328-0015
NPI assigned
Oct 21, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 23, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X R0494921 NY Primary

Addresses

Primary practice location

8612 Main St Ste 1
Williamsville, NY 14221-7462

Mailing address

8612 Main St Ste 1
Williamsville, NY 14221-7462
Phone (716) 458-0055

Other identifiers 3

IdentifierTypeStateIssuer
000526904001OtherBLUE CROSS
00026038501OtherUNIVERA
6211542OtherINDEPENDENT HEALTH

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: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101206000336 NY Practitioner - Clinical Social Worker 9739376690

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

8612 Main St
Suite 1
Williamsville, NY 14221-7462
Phone (716) 458-0055

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
R0494921NYMDSocial Worker
049492NYMDPhysical Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Messer Psychological Services, PC Social Worker Past Accepting new patients

Organizations & group practices 1

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": "1161388800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771804800000",
    "number": "1003999434",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8612 MAIN ST STE 1",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142217462",
            "telephone_number": "716-458-0055",
            "fax_number": "716-328-0015"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8612 MAIN ST STE 1",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142217462",
            "telephone_number": "716-458-0055",
            "fax_number": "716-328-0015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SADKIN",
        "first_name": "WENDY",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-10-21",
        "last_updated": "2026-02-23",
        "certification_date": "2026-02-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "R0494921",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "000526904001",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNIVERA",
            "identifier": "00026038501",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "INDEPENDENT HEALTH",
            "identifier": "6211542",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Williamsville, NY

Sources for this page

Verify at the official NPI Registry.