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Diagnostic Radiology

Rujman Zaman, MD

Works at hospitals in Chicago, IL · Bolingbrook, IL · Glendale Heights, IL … · Illinois

Summary

Dr. Rujman Zaman, MD is a radiologist at 120 N Oak St, Hinsdale, IL 60521. Phone: (630) 856-9000. Accepts Medicare assignment. In 2024, Rujman Zaman had 2,715 Original Medicare patients and 4,739 services. NPI 1841671799. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Rujman Zaman, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Rujman Zaman accept Medicare assignment?
Yes. Medicare's clinician data says Rujman Zaman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Rujman Zaman see?
In 2024, CMS data shows 2,715 Original Medicare patients and 4,739 services for Rujman Zaman. This counts Original Medicare only and measures volume, not quality.
What is Rujman Zaman's NPI number?
1841671799. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Rujman Zaman, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients2,715
Services billed to Medicare4,739
Different services or procedures179
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. X-ray of chest, 1 view (71045)928 services
  2. Ct scan head or brain without contrast (70450)430 services
  3. Ct scan of abdomen and pelvis without contrast (74176)263 services
  4. X-ray of chest, 2 views (71046)251 services
  5. Ct scan of chest without contrast (71250)214 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis59%
  • Ischemic heart disease47%
  • Diabetes39%
  • Chronic kidney disease35%

Hospitals where Rujman Zaman works

Medicare's Facility Affiliation Data lists Rujman Zaman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Rujman Zaman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rujman Zaman as a member of these groups (CMS data updated October 2, 2026).

  • Insight Chicago Inc141 clinicians in the group
  • Prime Radiology Consultants P.C53 clinicians in the group
  • Suburban Radiologists, S.C.22 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Illinois →

Other radiologists in Hinsdale

Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.

All radiologists in Hinsdale →

Other clinicians in Insight Chicago Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1841671799
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians