| Advanced Fertility Center of Chicago | Gurnee, IL | 2,031 | Open |
| Advanced Reproductive Center | Rockford, IL | Not reported | Non-reporter |
| Carle Health Reproductive Medicine | Urbana, IL | Not reported | Non-reporter |
| Center for Reproductive Care | Chicago, IL | Not reported | Non-reporter |
| Chicago Infertility Associates, LTD | Bolingbrook, IL | 6 | Open |
| Chicago IVF | Skokie, IL | 707 | Open |
| Daniel Rostein, MD, SC | Oak Brook, IL | 33 | Open |
| Davies Fertility & IVF Specialists, SC | Glenview, IL | 514 | Open |
| Fertility Centers of Illinois-Highland Park IVF Center | Highland Park, IL | 1,227 | Open |
| Fertility Centers of Illinois-River North IVF | Chicago, IL | 3,918 | Open |
| Institute for Human Reproduction (IHR) | Chicago, IL | 1,585 | Open |
| InVia Fertility Specialists | Hoffman Estates, IL | 1,173 | Open |
| IVF1 | Naperville, IL | 1,052 | Open |
| Kindbody-Chicago West Loop | Chicago, IL | 3,427 | Reorganized |
| Kindbody-Crest Hill | Crest Hill, IL | 218 | Reorganized |
| Midwest Fertility Center | Downers Grove, IL | 184 | Open |
| North Shore Fertility | Skokie, IL | 210 | Open |
| Northwestern Fertility and Reproductive Medicine | Chicago, IL | 3,202 | Open |
| Reproductive Health Specialists, Ltd. | Joliet, IL | Not reported | Non-reporter |
| Reproductive Medicine Institute | Oak Brook, IL | 1,436 | Open |
| RUSH Center for Advanced Reproductive Care | Chicago, IL | 257 | Reorganized |
| Southern Illinois University School of Medicine Fertility and IVF Center | Springfield, IL | 263 | Open |
| The Advanced IVF Institute, Charles E. Miller, MD, SC & Associates | Naperville, IL | 729 | Open |
| University of Chicago Medicine Center for Reproductive Medicine and Fertility | Chicago, IL | 406 | Open |
| University of Illinois at Chicago IVF Program | Chicago, IL | 116 | Reorganized |