1,482 cities with NPPES-registered healthcare providers in Illinois. Counts reflect providers with a Illinois practice address in the federal registry.
| Rank | City | Providers in IL |
|---|---|---|
| 1 | Chicago | 77,875 |
| 2 | Naperville | 5,973 |
| 3 | Springfield | 5,743 |
| 4 | Peoria | 5,351 |
| 5 | Rockford | 4,841 |
| 6 | Evanston | 4,716 |
| 7 | Aurora | 4,005 |
| 8 | Oak Lawn | 3,400 |
| 9 | Arlington Heights | 3,394 |
| 10 | Skokie | 3,034 |
| 11 | Glenview | 3,012 |
| 12 | Park Ridge | 2,982 |
| 13 | Elgin | 2,939 |
| 14 | Oak Park | 2,915 |
| 15 | Champaign | 2,860 |
| 16 | Wheaton | 2,818 |
| 17 | Joliet | 2,796 |
| 18 | Northbrook | 2,782 |
| 19 | Maywood | 2,577 |
| 20 | Orland Park | 2,548 |
| 21 | Schaumburg | 2,548 |
| 22 | Downers Grove | 2,358 |
| 23 | Bloomington | 2,328 |
| 24 | Mchenry | 2,045 |
| 25 | Urbana | 1,931 |
| 26 | Elmhurst | 1,922 |
| 27 | Belleville | 1,888 |
| 28 | Decatur | 1,875 |
| 29 | Crystal Lake | 1,829 |
| 30 | Libertyville | 1,750 |
| 31 | Lombard | 1,748 |
| 32 | Des Plaines | 1,739 |
| 33 | Hoffman Estates | 1,717 |
| 34 | Hinsdale | 1,648 |
| 35 | Waukegan | 1,621 |
| 36 | Quincy | 1,589 |
| 37 | Plainfield | 1,573 |
| 38 | Tinley Park | 1,568 |
| 39 | Marion | 1,402 |
| 40 | Alton | 1,352 |
| 41 | St Charles | 1,348 |
| 42 | Bolingbrook | 1,341 |
| 43 | Moline | 1,331 |
| 44 | Berwyn | 1,310 |
| 45 | Palos Heights | 1,307 |
| 46 | Carbondale | 1,295 |
| 47 | Oak Brook | 1,273 |
| 48 | Geneva | 1,266 |
| 49 | Danville | 1,242 |
| 50 | Elk Grove Village | 1,218 |