NPIMap

Organization Active NPI

Known Chicago SC

  • Family Medicine Physician
  • Westmont, IL
National Provider Identifier
1700609484
Registry record updated Dec 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
Legal business name
KNOWN CHICAGO SC
Practice address
460 Quail Ridge Dr
Westmont, IL 60559-6145
Phone
(630) 986-2800
NPI assigned
Nov 1, 2024
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 22, 2025

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

Authorized official

Name
Dr. Britta Reierson, MD
Title
Cmo
Phone
(315) 216-2910

Specialties & licenses 6

Specialty (taxonomy)CodeLicenseStatePrimary
Registered DietitianGroup: 193200000X MULTI-SPECIALTY GROUP 133V00000X
Family Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207Q00000X Primary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X
Obesity Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RB0002X
Pediatrics PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208000000X
Pediatric Obesity Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 2080B0002X

Addresses

Primary practice location

460 Quail Ridge Dr
Westmont, IL 60559-6145

Mailing address

460 Quail Ridge Dr
Westmont, IL 60559-6145
Phone (630) 986-2800

Other practice location 1

25 E Schaumburg Rd Ste 101
Schaumburg, IL 60194-3548
Phone (630) 986-2800

Other practice location 2

1975 Lin Lor Ln Ste 295
Elgin, IL 60123-4964
Phone (630) 986-2800

Other practice location 3

331 W Surf St Ste 5100
Chicago, IL 60657-7227
Phone (630) 986-2800

Other names 1

  • KNOWN CHICAGO SC Other name

National Provider Directory

National Provider Directory

Locations

7940 Jones Branch Dr
Mc Lean, VA 22102

Practitioners & affiliated clinicians

Practitioners 12

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": "1730419200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766361600000",
    "number": "1700609484",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "460 QUAIL RIDGE DR",
            "city": "WESTMONT",
            "state": "IL",
            "postal_code": "605596145",
            "telephone_number": "630-986-2800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "460 QUAIL RIDGE DR",
            "city": "WESTMONT",
            "state": "IL",
            "postal_code": "605596145",
            "telephone_number": "630-986-2800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "25 E Schaumburg Rd Ste 101",
            "address_purpose": "LOCATION",
            "city": "Schaumburg",
            "state": "IL",
            "postal_code": "601943548",
            "country_code": "US",
            "telephone_number": "630-986-2800",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1975 Lin Lor Ln Ste 295",
            "address_purpose": "LOCATION",
            "city": "Elgin",
            "state": "IL",
            "postal_code": "601234964",
            "country_code": "US",
            "telephone_number": "630-986-2800",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "331 W Surf St Ste 5100",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606577227",
            "country_code": "US",
            "telephone_number": "630-986-2800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "KNOWN CHICAGO SC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-11-01",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A",
        "authorized_official_last_name": "REIERSON",
        "authorized_official_first_name": "BRITTA",
        "authorized_official_title_or_position": "CMO",
        "authorized_official_telephone_number": "315-216-2910",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dietitian, Registered",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Family Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RB0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Obesity Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Pediatrics",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2080B0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Pediatrics, Obesity Medicine",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "KNOWN CHICAGO SC",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Westmont, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 22, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.