| Decatur Memorial Hospital | 217-876-8121 |
| Cancer Registry | 217-876-2370 |
| Centralized Scheduling | 217-876-1111 |
| Clinical Research | 217-876-6620 |
| Family Lodge | 217-876-2020 |
| Hospice | 217-876-6770 |
| Inpatient Oncology Unit/5100 | 217-876-5100 |
| Interventional Radiology | 217-876-6730 |
| Medical Oncology | 217-876-6600 |
| Pastoral Services | 217-876-4320 |
| Pathology | 217-876-5000 |
| Patient Navigator | 217-876-6600 |
| Primary, Secondary Prevention | 217-876-2370 |
| Public Education | 217-876-2380 |
| Radiology | 217-876-2300 |
| Radiation Oncology | 217-876-2350 |
| Supportive Services, Support Groups | 217-876-2370 |
| Surgery | 217-876-8121 |
| Rehabilitation Services | 217-876-2600 |
| Professional Education, Resources | 217-876-2370 |
| Women's Health and Breast Center | 217-876-4377 |