Quick answers
- Does Karan Nijhawan accept Medicare assignment?
- Yes. Medicare's clinician data says Karan Nijhawan 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 Karan Nijhawan see?
- In 2024, CMS data shows 1,040 Original Medicare patients and 1,472 services for Karan Nijhawan. This counts Original Medicare only and measures volume, not quality.
- What is Karan Nijhawan's NPI number?
- 1992201560. 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 Karan Nijhawan, 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 patients | 1,040 |
|---|---|
| Services billed to Medicare | 1,472 |
| Different services or procedures | 116 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- X-ray of chest, 1 view (71045)381 services
- Limited ultrasound scan of abdomen (76705)88 services
- Ct scan of abdomen and pelvis with contrast (74177)87 services
- Ct scan head or brain without contrast (70450)86 services
- Ct scan of chest without contrast (71250)85 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%
- Arthritis62%
- Diabetes50%
- Heart failure48%
- Ischemic heart disease47%
Hospitals where Karan Nijhawan works
Medicare's Facility Affiliation Data lists Karan Nijhawan 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.
- AMITA Health Resurrection Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140117
- Presence Saints Mary and Elizabeth Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140180
- Saint Joseph Medical CenterJoliet, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140007
- The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140088
- UChicago Medicine Northwest IndianaCrown Point, IN · Acute Care Hospital · Emergency services: listed by Medicare · CCN 150195
Practice locations
Addresses where Karan Nijhawan is enrolled with Medicare (CMS data updated October 2, 2026).
- 10855 Virginia StCrown Point, IN 46307 (888) 824‑0200
- 355 E Grand AveChicago, IL 60611 (773) 702‑1000
- 47 W Polk St, Suite G1Chicago, IL 60605 (773) 702‑1000
- 5841 S Maryland AveChicago, IL 60637 (888) 824‑0200
- 833 W 15th Pl, Unit 605Chicago, IL 60608 (847) 637‑8711
Group practices
Medicare enrollment lists Karan Nijhawan as a member of these groups (CMS data updated October 2, 2026).
- University of Chicago1,712 clinicians in the group
- Illinois Diagnostic and Interventional Radiology PLLC123 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Crown Point
Clinicians with the same Medicare primary specialty in Crown Point, IN — not a recommendation.
Other clinicians in University of Chicago
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992201560 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians