Download the list of Internists in Illinois. Smartscrapers provides an accurate directory and the latest data on the number of Internists in Illinois As of January 23, 2025, Illinois has 7,004 internists, reflecting a 2.05% increase from 2023. Among these, 4,006 internists (57.20%) are independently owned, while the remaining 2,998 (42.80%) are part of larger brands. The cities with the highest number of internists are Chicago with 4,547, Peoria with 311, and Springfield with 245. On average, internists in Illinois have been practicing for 5 years and 5 months.