Brett Riederman, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

125.073830 Issued in IL

Practice address

40 Skokie Blvd.
Suite 110
Northbrook, IL 60062-1614

Phone

(224) 407-4400

Fax

(224) 407-2255

NPI assigned

Mar 18, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Oct 3, 2025 through Oct 3, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/AAGEBD/Endpoint/AAGEBD

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.

• Comprehensive Gastrointestinal Health, LLC

  • Gastroenterology Physician
  • Northbrook, IL
  • NPI 1427541721
  NPD (past)

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1003375254",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "950 TECHNOLOGY WAY",
            "address_2": "SUITE 250",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600485366",
            "telephone_number": "224-407-4400",
            "fax_number": "224-407-2255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "40 SKOKIE BLVD.",
            "address_2": "SUITE 110",
            "city": "NORTHBROOK",
            "state": "IL",
            "postal_code": "600621614",
            "telephone_number": "224-407-4400",
            "fax_number": "224-407-2255"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RIEDERMAN",
        "first_name": "BRETT",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-18",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125.073830",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Richard Razdolsky DDS LLC
• Jamie Richards
• Katherine Elizabeth Richardson
• Rick Tivers & Associates
• Ride X Taxi Inc.
• Sara Elisabeth Riggle, MSSW
• Luiza Rikhman
• Robert Riordan
• Rachel Rios, MSW
• Kristin Ripoli

• Internal Medicine Physician in Northbrook, IL
• Providers in Northbrook, IL by specialty
• Internal Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.