Cathryn T. Lee, MD

Medicare activity in 2024

Official CMS public-use data for Cathryn T. Lee, 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. Test to determine lung volumes using sensors (94726)106 services
2. Test to examine how well the lungs exchange gases (94729)95 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)90 services
4. Test for exercise-induced lung stress (94618)70 services
5. Critical care, first 30-74 minutes (99291)58 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 cholesterol70%
• Arthritis55%
• COPD54%
• Heart failure46%
• Diabetes43%

Hospitals where Cathryn T. Lee works

Medicare's Facility Affiliation Data lists Cathryn T. Lee 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.

• Community HospitalMunster, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150125
• Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
• 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 AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140065
• UChicago Medicine Northwest IndianaCrown Point, IN · Acute Care Hospital · Emergency services: listed by Medicare · CCN 150195

Practice locations

Addresses where Cathryn T. Lee is enrolled with Medicare (CMS data updated October 2, 2026).

• 5841 S Maryland AveChicago, IL 60637 (773) 702‑1000

Group practices

Medicare enrollment lists Cathryn T. Lee as a member of these groups (CMS data updated October 2, 2026).

• University of Chicago1,712 clinicians in the group
• The University of Chicago Medical Center915 clinicians in the group

Specialties

• Pulmonary Diseaseprimary

Find other Pulmonary Disease doctors in Illinois →

Other pulmonologists in Chicago

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

• Shira R. Osher, MD
• Peter H. Sporn, MD
• Anita A. Shah, DO
• Hassan G. Azar, MD
• Sharon R. Rosenberg, MD
• William M. Sanders, MD
• Kalli Sarigiannis, MD
• Mark A. Tancredi, MD

All pulmonologists in Chicago →

Other clinicians in University of Chicago

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

• Nancy S. Ghanayem, MD
• Alexandra E. Rojek, MD
• Narayan Sundaram, MD
• Issam A. Awad, MD
• Samantha C. Gunning, MD
• Patrick T. Tran, 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