NPI numbers in Illinois
318,429 active NPIs list a practice location in Illinois.
244,344 individuals and 74,085 organizations. Illinois ranks #8 of 56 states and territories.
Look up a provider in Illinois
Most common specialties in Illinois
| Primary specialty | Active NPIs | Share |
|---|---|---|
| Clinical Social Worker | 16,247 | 5.1% |
| Physical Therapist | 13,525 | 4.2% |
| Mental Health Counselor | 12,296 | 3.9% |
| Professional Counselor | 11,178 | 3.5% |
| Speech-Language Pathologist | 11,087 | 3.5% |
| Pharmacist | 9,923 | 3.1% |
| Behavior Technician | 9,559 | 3.0% |
| Internal Medicine Physician | 9,024 | 2.8% |
| Family Medicine Physician | 8,005 | 2.5% |
| Family Nurse Practitioner | 7,960 | 2.5% |
| General Practice Dentistry | 7,693 | 2.4% |
| Chiropractor | 7,555 | 2.4% |
| Student in an Organized Health Care Education/Training Program | 6,386 | 2.0% |
| Occupational Therapist | 6,151 | 1.9% |
| Social Worker | 6,046 | 1.9% |
Counts are active NPIs in the NPPES file of September 13, 2026, by the state of the practice location and each provider's primary specialty. They count records, not practicing clinicians.