NPPES file of Aug 9, 2026

Ian Walker Winter, MD

Radiation Oncology Physician · Park Ridge, IL

Ian Walker Winter, MD is a radiation oncology physician with a practice address in Park Ridge, Illinois, and NPI 1013413285, issued on Apr 4, 2018. Check the license (Illinois 036164037, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013413285
Name
Ian Walker Winter
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
036164037 IL
Self-reported in NPPES; status is on the state search
Practice location
1700 Luther LN, Park Ridge, IL 60068
Phone
(847) 723-8030
Enumerated
Apr 4, 2018
Record last updated
May 5, 2026
Medicare enrollment
Enrolled (PECOS I20230613001306); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1700 Luther LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jacob Bitran, M.D.Hematology & Oncology Physician1407815822
  2. Shams Bufalino, M.D.Hematology & Oncology Physician1831488741
  3. James Dolan, M.D.Gynecologic Oncology Physician1013017946
  4. Angel Galvez, M.D.Hematology & Oncology Physician1144280835
  5. Arica Hirsch, M.D.Radiation Oncology Physician1770574758
  6. Arthur Hooberman, M.D.Hematology & Oncology Physician1124088489

Verify Ian Walker Winter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036164037
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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25% more Medicare Part D claims than the average radiation oncology physician in 2024

167 Medicare Part D claims for 70 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Ian Winter167
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl31 claims
  2. Lidocaine Hcl Viscous24 claims
  3. Gabapentin18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 77.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.4
  2. Costout of 100 · 30%59.8
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Radiation Oncology Consultants, LtdDowners Grove, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ian Walker Winter among 277 radiation oncology physician records in Illinois

Ian Walker Winter, MD is one of 277 radiation oncology physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.

  • NPI issued2018 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2004 among the 184 with a school on file
  • Record last updated2026 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Illinois

There are 277 radiation oncology physician records in Illinois.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Arica Hirsch, M.D.Park Ridge, IL 600681770574758
  2. Tanya Powell, M.D.Park Ridge, IL 600681043201072
  3. Terrence Bugno, MDMcHenry, IL 600501235163437
  4. Shunqing Zhang, MDMcHenry, IL 600501649773425
  5. Rena Zimmerman, M.D.McHenry, IL 600501851350318
  6. Joy Coleman, M.D.Libertyville, IL 600481598872111
  7. Dean Conterato, MDLibertyville, IL 600481033110192
  8. Majid Mohiuddin, M.D.Libertyville, IL 600481568415065

Common questions

What is Ian Walker Winter, MD's NPI number?

Ian Walker Winter, MD's National Provider Identifier (NPI) is 1013413285, issued on Apr 4, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Ian Walker Winter, MD located?

The NPPES record lists a practice address at 1700 Luther LN, Park Ridge, IL, 60068. Phone: (847) 723-8030. Providers update this record themselves, so call before visiting.

How can I verify Ian Walker Winter, MD's license?

NPPES lists Illinois license number 036164037, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ian Walker Winter, MD prescribe under Medicare Part D?

In 2024, Ian Walker Winter, MD had 167 Medicare Part D claims for 70 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Ian Walker Winter, MD's MIPS final score?

The 2023 MIPS final score is 77.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.