Organization Active NPI

Wahid Kassar MD LTD

  • Endocrinology, Diabetes & Metabolism Physician
  • Chicago, IL
National Provider Identifier
1356961304
Registry record updated Oct 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
Legal business name
WAHID KASSAR MD LTD
Practice address
7447 W Talcott Ave Ste 467
Chicago, IL 60631-3715
Phone
(630) 866-3636
Fax
(773) 692-2035
NPI assigned
Apr 20, 2020
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Oct 2, 2025

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

Authorized official

Name
Wahid Kassar, MDNPI 1144203647
Title
Owner
Phone
(630) 866-3636

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RE0101X Primary

Addresses

Primary practice location

7447 W Talcott Ave Ste 467
Chicago, IL 60631-3715

Mailing address

7447 W Talcott Ave Ste 467
Chicago, IL 60631-3715
Phone (630) 866-3636

Other practice location 1

900 S Frontage Rd Ste 375
Woodridge, IL 60517-5144
Phone (630) 866-3636

Other names 1

  • Elite Endocrinology Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20201209000446 IL Part B Supplier - Clinic/Group Practice 3779994694 Receives reassigned benefits from 2 practitioners
Practice locations: New Lenox, IL; Oakbrook Terrace, IL; Chicago, IL

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
14D2193248Elite Endocrinology7447 W Talcott Ave #551, Chicago, IL 60631Certificate of waiverSep 17, 2026

National Provider Directory

National Provider Directory

Locations

1800 Silver Cross Blvd
Ste 320
New Lenox, IL 60451
Phone (630) 866-3636

900 S Frontage Rd
Ste 375
Woodridge, IL 60517
Phone (630) 866-3636

9696 Gordon Dr
Highland, IN 46322
Phone (219) 937-2511

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1587340800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1759363200000",
    "number": "1356961304",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7447 W TALCOTT AVE STE 467",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606313715",
            "telephone_number": "630-866-3636",
            "fax_number": "773-692-2035"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7447 W TALCOTT AVE STE 467",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606313715",
            "telephone_number": "630-866-3636",
            "fax_number": "773-692-2035"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "900 S Frontage Rd Ste 375",
            "address_purpose": "LOCATION",
            "city": "Woodridge",
            "state": "IL",
            "postal_code": "605175144",
            "country_code": "US",
            "telephone_number": "630-866-3636",
            "fax_number": "773-692-2035",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "WAHID KASSAR MD LTD",
        "organizational_subpart": "NO",
        "enumeration_date": "2020-04-20",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A",
        "authorized_official_last_name": "KASSAR",
        "authorized_official_first_name": "WAHID",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "630-866-3636",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Elite Endocrinology",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Elite Endocrinology",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.