Elias J. Koliopoulos, MD

Medicare activity in 2024

Official CMS public-use data for Elias J. Koliopoulos, 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.

Most frequent services

1. Insertion of needle into vein for collection of blood sample (36415)468 services
2. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)287 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)279 services
4. Blood test, comprehensive group of blood chemicals (80053)256 services
5. Blood test, thyroid stimulating hormone (tsh) (84443)225 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 cholesterol75%
• High blood pressure65%
• Arthritis44%
• Ischemic heart disease25%
• Depression23%
• Diabetes20%

Hospitals where Elias J. Koliopoulos works

Medicare's Facility Affiliation Data lists Elias J. Koliopoulos 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.

• Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
• UChicago Medicine AdventHealth HinsdaleHinsdale, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140122

Practice locations

Addresses where Elias J. Koliopoulos is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 100 Spalding Dr, Suite 3Naperville, IL 60540 (630) 355‑8000
• 1325 N Meacham RdSchaumburg, IL 60173 (630) 469‑9200
• 17495 La Grange RdTinley Park, IL 60487 (708) 226‑7000
• 1801 S Highland AveLombard, IL 60148 (630) 627‑4722
• 2100 Glenwood AveJoliet, IL 60435 (815) 725‑2121

Group practices

Medicare enrollment lists Elias J. Koliopoulos as a member of this group (CMS data updated October 2, 2026).

• Dupage Medical Group Ltd1,322 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Naperville

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

• Neha Syed, DO
• John K. Lee, MD
• Jerome J. Hong, MD
• Mark D. Gomez, MD
• Denise Valero Ficht, MD
• Susan S. Kim, MD
• Narendra Garg, MD
• Krishna S. Bathina, MD

All internal medicine doctors in Naperville →

Other clinicians in Dupage Medical Group Ltd

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

• Chris C. Huang, MD
• Weiser E. Cordero, MD
• Ehsan Safari, DO
• Jennifer Dziatkowiec, CSW
• William H. Gros, MD
• Evans P. Pappas, MD

Clinician information

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