Nicholas G. Apostolopoulos, MD

Medicare activity in 2024

Official CMS public-use data for Nicholas G. Apostolopoulos, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)108 services
2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)24 services
3. Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected (0241U)21 services
4. Automated urinalysis test (81003)16 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 cholesterol64%
• High blood pressure59%
• Arthritis50%
• Osteoporosis29%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)24%
• Diabetes22%

Hospitals where Nicholas G. Apostolopoulos works

Medicare's Facility Affiliation Data lists Nicholas G. Apostolopoulos 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.

• The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140088

Practice locations

Addresses where Nicholas G. Apostolopoulos is enrolled with Medicare (CMS data updated October 2, 2026).

• 17805 Halsted StHomewood, IL 60430 (773) 702‑1000
• 355 E Grand AveChicago, IL 60611 (773) 702‑1000

Group practices

Medicare enrollment lists Nicholas G. Apostolopoulos as a member of this group (CMS data updated October 2, 2026).

• University of Chicago1,712 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Illinois →

Other family doctors in Homewood

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

• Courtney Hatcher, MD
• Michael G. Ward, MD
• Komal M. Patel, DO
• Sandy Y. Gibson, DO
• Joseph L. Newberg, MD
• Ehiwe Akhigbe, MD

All family doctors in Homewood →

Other clinicians in University of Chicago

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

• Mohamad Bydon, MD
• Laura C. Michalesko, CNA
• Shreya R. Vasavada
• Christopher K. Daugherty, MD
• Frederick M. Howard, MD
• Meaghan A. Gibbons, CNA

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