Ian Walker Winter, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

036164037 Issued in IL

Practice address

1700 Luther LN
Park Ridge, IL 60068-1270

Phone

(847) 723-8030

NPI assigned

Apr 4, 2018

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

Enrolled in IL

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 1

Specialty

Radiation Oncology

Education

University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radiation Oncology Consultants, LTDGroup PAC ID 0345138509, 19 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Advocate Lutheran General Hospital Hospital, Park Ridge, IL, CCN 140223
• Advocate Illinois Masonic Medical Center Hospital, Chicago, IL, CCN 140182
• Advocate Good Samaritan Hospital Hospital, Downers Grove, IL, CCN 140288

Merit-based Incentive Payment System (MIPS)

Final score

71.69 of 100Reported as group

Quality

64.46

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• devoted network organization-734447cc-691b-4aa7-a112-9c9c8698dcc9
• devoted network organization-27eb9117-6975-449a-a7ad-909243995ddc
• IL PPO Downstate
• IL HMO C-SNP
• devoted network organization-1baeae7e-6b6f-49f9-a562-1b2d2e55c806

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.

• Radiation Oncology Consultants, LTD

  • Radiation Oncology Physician
  • Oak Brook, IL
  • NPI 1164412417
  Medicare reassignment Care Compare group NPD
• Bonaventure Medical Foundation, LLC

  • Family Medicine Physician
  • Elk Grove Village, IL
  • NPI 1588775647
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Advocate Health and Hospitals Corporation

  • General Acute Care Hospital
  • Park Ridge, IL
  • NPI 1164539730
  Care Compare affiliation
• Advocate Health and Hospitals Corporation

  • General Acute Care Hospital
  • Downers Grove, IL
  • NPI 1578670543
  Care Compare affiliation
• Advocate North Side Health Network

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1912014564
  Care Compare affiliation

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

{
    "created_epoch": "1522800000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1013413285",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 COMMERCE DR STE 500",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605238736",
            "telephone_number": "847-698-0600",
            "fax_number": "847-698-0601"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1700 LUTHER LN",
            "city": "PARK RIDGE",
            "state": "IL",
            "postal_code": "600681270",
            "telephone_number": "847-723-8030"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3815 Highland Ave",
            "address_purpose": "LOCATION",
            "city": "Downers Grove",
            "state": "IL",
            "postal_code": "605151500",
            "country_code": "US",
            "telephone_number": "630-275-2300",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WINTER",
        "first_name": "IAN",
        "middle_name": "WALKER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-04",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "036164037",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cindi-Marie Dingman Willoughby, PSY. D.
• Willow Wellness Center, PLLC
• Neil S Wilner, D.D.S.
• Kelsey Marie Winck, MSN, FNP-BC
• Tracy Ann Winger, M.D.
• Layla Wisser, DO
• Natalie Witek, MD
• Megan Witkowski, NNP-BC
• Roman B Witkowsky, MD
• Leon Robert Wleklinski, D.C.

• Radiation Oncology Physician in Park Ridge, IL
• Providers in Park Ridge, IL by specialty
• Radiation Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 2026; 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.
• 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.