Individual provider Active NPI

Wahid Kassar, M.D.

  • Endocrinology, Diabetes & Metabolism Physician
  • Chicago, IL
National Provider Identifier
1144203647
Registry record updated Oct 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
036107989 Issued in IL
Practice address
7447 W Talcott Ave Ste 467
Chicago, IL 60631-3715
Phone
(630) 866-3636
Fax
(773) 692-2035
NPI assigned
Nov 29, 2005
Last updated
Oct 2, 2025By the provider in NPPES
Sex
Male
Sole proprietor
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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 036107989 IL 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 practice location 2

6050 Sterling Creek Rd
Portage, IN 46368-7752
Phone (219) 763-8112 ext. 4959

Other identifiers 4

IdentifierTypeStateIssuer
P00078735OtherILRR MEDCIARE PTAN (INDIVIDUAL)
206147OtherILMEDICARE PTAN (GROUP)
F400094850OtherILMEDICARE PTAN (INDIVIDUAL)
036107989MedicaidIL

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL, IN2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20040310001340 IL Practitioner - EndocrinologyPractitioner - Internal Medicine 4789573692 Reassigns benefits to 1 organization
I20191030003637 IN Practitioner - EndocrinologyPractitioner - Internal Medicine 4789573692 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Other, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Northshore Health Centers IncGroup PAC ID 5799671236, 31 clinicians
Wahid Kassar MD LTDGroup PAC ID 3779994694, 2 clinicians

Practice addresses (Care Compare)

1828 165TH St
Suite a
Hammond, IN 46320-2823
Phone (219) 763-8112

2490 Central Ave
Lake Station, IN 46405-2122
Phone (219) 763-8112

310 W 112TH Ave
Crown Point, IN 46307-7844
Phone (219) 763-8112

6050 Sterling Creek Rd
Portage, IN 46368-7752
Phone 21976381123233

6091 Broadway
Merrillville, IN 46410-2619
Phone (219) 763-8112

7447 W Talcott Ave
Suite 221
Chicago, IL 60631-3713
Phone (630) 866-3636

801 Broadway
Chesterton, IN 46304-2230
Phone (219) 763-8112

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
22.84 of 100Reported as individual
Quality
0
Improvement activities
0
Cost
76.14

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036107989ILMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Northshore Health Centers Inc Current Accepting new patients
GN Endocrinology LTD Endocrinology, Diabetes & Metabolism CurrentSince Nov 1, 2019 Accepting new patients
Northshore Health Centers, Inc. CurrentSince Jul 30, 2020 Accepting new patients
Wahid Kassar MD LTD Endocrinology, Diabetes & Metabolism CurrentSince Apr 1, 2020 Accepting new patients
Northshore Health Centers, Inc. Endocrinology, Diabetes & Metabolism CurrentSince Jul 30, 2020 Accepting new patients
Emergency Medical Specialist, S.C Past Accepting new patients
Central Dupage Hospital Association Past Accepting new patients

Locations

7447 W Talcott Ave
Ste 221
Chicago, IL 60631
Phone (630) 866-3636

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

7447 W Talcott Ave
Ste 551
Chicago, IL 60631
Phone (773) 467-9977

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

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

10012 Calumet Ave
#A
Munster, IN 46321
Phone (219) 227-5119

740 Seberger Dr
Munster, IN 46321
Phone (219) 237-6474

6050 Sterling Creek Rd
Portage, IN 46368
Phone (219) 212-0188

6450 US Highway 6
Portage, IN 46368
Phone (219) 764-6104

Interoperability endpoints

  • Direct secure messaging: wahid.kassar.p1@direct.northshorehealth.nextgenshare.com

Organizations & group practices 7

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 7

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": "1133222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759363200000",
    "number": "1144203647",
    "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"
        },
        {
            "address_1": "6050 Sterling Creek Rd",
            "address_purpose": "LOCATION",
            "city": "Portage",
            "state": "IN",
            "postal_code": "463687752",
            "country_code": "US",
            "telephone_number": "219-763-8112 x4959",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KASSAR",
        "first_name": "WAHID",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-29",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "IL",
            "license": "036107989",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDCIARE PTAN (INDIVIDUAL)",
            "identifier": "P00078735",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN (GROUP)",
            "identifier": "206147",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN  (INDIVIDUAL)",
            "identifier": "F400094850",
            "state": "IL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036107989",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.