Doctors & clinics in Illinois
13,512 doctors & clinics listed across 516 cities in Illinois.
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Quick answer
USA Business Search lists 13,512 doctors & clinics in Illinois. The most are in Chicago (2,746), Oak Lawn (368), Park Ridge (335).
Updated October 2026Doctors & clinics by city
Chicago (2,746)Oak Lawn (368)Park Ridge (335)Naperville (272)Peoria (253)Springfield (242)Evanston (228)Elgin (203)Skokie (203)Downers Grove (196)Aurora (189)Glenview (170)Highland Park (167)Lake Forest (166)Rockford (164)Elmhurst (150)Arlington Heights (148)Hoffman Estates (147)Joliet (136)Gurnee (134)Oak Park (128)Barrington (128)Des Plaines (127)Libertyville (125)Hinsdale (120)Schaumburg (119)Orland Park (117)Elk Grove Village (104)Moline (101)Buffalo Grove (97)Bloomington (91)Plainfield (90)Geneva (88)Decatur (87)Crystal Lake (82)Hazel Crest (82)Wheaton (81)Winfield (76)Mount Prospect (74)Niles (73)Lombard (71)St. Charles (70)Palos Heights (64)Bolingbrook (63)Vernon Hills (61)Lincolnwood (61)Quincy (60)Bloomingdale (60)Deerfield (60)Northbrook (56)Normal (54)Algonquin (54)Tinley Park (53)Bartlett (51)Oak Brook (49)Glen Ellyn (48)New Lenox (48)Evergreen Park (48)Kankakee (47)Belleville (45)Frankfort (45)Sycamore (45)Olympia Fields (45)Carbondale (44)Addison (43)Morris (43)Oswego (42)Mokena (42)Grayslake (42)Lisle (41)Alton (41)Mundelein (41)Batavia (41)Bourbonnais (41)Pekin (40)Ottawa (40)Burbank (40)Lake Zurich (38)Round Lake Beach (38)McHenry (37)Melrose Park (36)Warrenville (36)Berwyn (35)Wilmette (35)Westmont (34)Huntley (34)Northfield (34)Mount Vernon (33)Woodridge (33)South Elgin (33)Marion (32)Galesburg (32)Rolling Meadows (31)Yorkville (31)Maywood (31)Palatine (30)La Grange (30)Lincolnshire (30)Burr Ridge (28)Sterling (28)Belvidere (27)South Holland (27)Oakbrook Terrace (26)Carol Stream (25)Jacksonville (25)Urbana (24)Danville (24)Morton (24)Maryville (24)Morton Grove (23)Champaign (22)Effingham (22)Highland (21)Blue Island (21)Sandwich (21)Edwardsville (20)Washington (20)Crest Hill (20)Pontiac (20)O Fallon (20)
Well-documented doctors & clinics in Illinois
A sample of listings with a street address, phone number and website, one per city.
Advocate Christ Center for Breast Care Mammography
Neamand Foot & Ankle Center
Northwestern Medicine Primary Care
OSF Medical Group - Glen Park Family Medicine
Springfield Clinic Physical Therapy
Northwestern Medicine Primary Care
Labcorp
Ko Be Care
Midwest Center For Day Surgery
Fox Valley Medical Associates
Adam J Cohen, MD
How to choose a doctor in Illinois
- Call your insurance to confirm the provider is in network before your first visit.
- Ask about telehealth options and how to reach the office after hours.
- Ask how long it usually takes to get a new-patient appointment.
Common questions
How many doctors & clinics are listed in Illinois?
USA Business Search lists 13,512 doctors & clinics in Illinois, in 516 cities and towns.
Which Illinois cities have the most doctors & clinics?
Chicago (2,746), Oak Lawn (368), Park Ridge (335), Naperville (272), Peoria (253).
How do I verify a Illinois business?
Use the state's official business search and licensing boards, linked in our Illinois business lookup guide.