20 Cornea and External Diseases Specialist providers practice in Illinois. The largest concentration is in Chicago. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
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From CMS Medicare enrollment records covering 14 of the 20 providers listed here (70%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Cornea and External Diseases Specialists | All clinicians in group | Main city |
| Loyola University Medical Center | 3 | 917 | Maywood |
| Wheaton Eye Clinic LTD | 3 | 44 | Wheaton |
| The Board of Trustees of the University of Illinois | 2 | 1,134 | Chicago |
| Ocular Partners PLLC | 2 | 20 | Chicago |
| Hospital | City | Ownership | CMS star rating | Cornea and External Diseases Specialists affiliated |
| Loyola University Medical Center | Maywood | Nonprofit | 2 of 5 | 4 |
| University of Illinois Hospital and Clinics | Chicago | Government | 4 of 5 | 3 |
| Northwestern Medicine Central Dupage Hospital | Winfield | Nonprofit | 5 of 5 | 3 |
| Advocate Illinois Masonic Medical Center | Chicago | Nonprofit | 3 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
There are 20 Cornea and External Diseases Specialist providers with active NPI records practicing in Illinois, according to federal NPPES data refreshed monthly.
Chicago (8), Maywood (4), Wheaton (3) have the highest concentration of Cornea and External Diseases Specialist providers in Illinois.
Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Among 14 Cornea and External Diseases Specialists in Illinois enrolled in Medicare, 14% bill through a solo or small practice with fewer than 10 clinicians, 43% through a mid-size group of 10 to 99, and 43% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Illinois hospitals where the most Cornea and External Diseases Specialists hold privileges are Loyola University Medical Center in Maywood; University of Illinois Hospital and Clinics in Chicago; Northwestern Medicine Central Dupage Hospital in Winfield.
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