Individual provider Active NPI

Katherine Victoria Riedstra, AU.D.

  • Audiologist
  • Chicago, IL
National Provider Identifier
1881584936
Registry record updated Apr 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
AudiologistTaxonomy code 231H00000X
Practice address
676 N Saint Clair St Ste 1200
Chicago, IL 60611-3068
Phone
(312) 695-8182
Fax
(312) 695-4303
NPI assigned
Jul 8, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Audiologist 231H00000X IL Primary

Addresses

Primary practice location

676 N Saint Clair St Ste 1200
Chicago, IL 60611-3068

Mailing address

676 N Saint Clair St Ste 1200
Chicago, IL 60611-3068
Phone (312) 695-8182

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250813001472 IL Practitioner - Qualified Audiologist 0244738797 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Qualified Audiologist
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Practice addresses (Care Compare)

675 N Saint Clair St
Chicago, IL 60611-5975

675 N St Clair
Chicago, IL 60611-5975

676 N Saint Clair
Chicago, IL 60611-2927

676 N Saint Clair St
Chicago, IL 60611-2927

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Northwestern Medical Faculty Foundation CurrentSince Aug 4, 2025 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Aug 4, 2025 Accepting new patients
Central Dupage Physician Group Past Accepting new patients

Locations

Dept 5777
Carol Stream, IL 60122

676 N Saint Clair St
Ste 1200
Chicago, IL 60611
Phone (312) 695-8182

675 N Saint Clair St
Ste 15-200
Chicago, IL 60611
Phone (312) 695-8182

675 N Saint Clair St
Fl 15
Chicago, IL 60611
Phone (312) 503-3649

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

660 N Westmoreland Rd
Lake Forest, IL 60045
Phone (847) 535-6100

Organizations & group practices 3

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": "1751932800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775433600000",
    "number": "1881584936",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "676 N SAINT CLAIR ST STE 1200",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113068",
            "telephone_number": "312-695-8182",
            "fax_number": "312-695-4303"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "676 N SAINT CLAIR ST STE 1200",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113068",
            "telephone_number": "312-695-8182",
            "fax_number": "312-695-4303"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RIEDSTRA",
        "first_name": "KATHERINE",
        "middle_name": "VICTORIA",
        "name_prefix": "Dr.",
        "credential": "AU.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-08",
        "last_updated": "2026-04-06",
        "certification_date": "2026-04-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "231H00000X",
            "taxonomy_group": "",
            "desc": "Audiologist",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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 Apr 6, 2026; 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.