Provider directory · By state
Healthcare providers in Illinois
CMS NPPES registration records for Illinois, aggregated across the 14 medical specialties Fonteum currently tracks, with CMS Care Compare facility counts and HRSA HPSA shortage-area context.
Fonteum tracks 16,413 healthcare providers in Illinois across the 14 medical specialties it ingests from the CMS NPPES NPI Registry, alongside 2,003 Medicare-certified facilities across 6 care families from CMS Care Compare, with HRSA shortage-area and OIG exclusion context. Every figure carries its source, snapshot date, and methodology version. Snapshot 2026-05-06 – 2026-05-07.
Provider supply by specialty in Illinois
Active-provider counts for the 14 specialties Fonteum ingests from the CMS NPPES NPI Registry, with per-100,000 density (U.S. Census PEP V2025) and the national density rank of 51 jurisdictions. This covers the tracked specialties only — not every NPPES provider in Illinois.
| Specialty | Providers | Per 100k | Density rank |
|---|---|---|---|
| Chiropractic | 4,603 | 36.2 | #14 |
| Psychiatry | 2,305 | 18.1 | #17 |
| Cardiology | 1,482 | 11.7 | #12 |
| Pediatrics | 1,225 | 9.6 | #16 |
| Orthopedic Surgery | 1,164 | 9.2 | #28 |
| Neurology | 1,091 | 8.6 | #12 |
| Ophthalmology | 1,000 | 7.9 | #15 |
| Gastroenterology | 905 | 7.1 | #11 |
| Dermatology | 731 | 5.8 | #16 |
| Urology | 642 | 5.1 | #12 |
| Otolaryngology (ENT) | 516 | 4.1 | #17 |
| Obstetrics & Gynecology | 280 | 2.2 | #31 · below threshold |
| Plastic Surgery | 253 | 2.0 | #16 |
| Oncology (Medical) | 216 | 1.7 | #27 · below threshold |
Source:CMS NPPESSnapshot 2026-05-06 – 2026-05-07
Medicare-certified facilities in Illinois
2,003 Medicare-certified facilities operate in Illinois across the families Fonteum tracks from CMS Care Compare. Each family links to its facility-level page for Illinois.
| Facility type | Facilities |
|---|---|
| Nursing homes | 667 |
| Home health agencies | 526 |
| Dialysis facilities | 340 |
| Hospitals | 194 |
| Hospice providers | 147 |
| Ambulatory surgical centers | 129 |
Source:CMS Care CompareSnapshot 2026-05-07
Health professional shortage areas in Illinois
HRSA currently designates 729 active Health Professional Shortage Areas in Illinois — 295 primary care, 250 dental health, and 184 mental health. A HPSA marks a geography, population, or facility with too few clinicians relative to need, scored 0–26 by HRSA.
Source:HRSA HPSASnapshot 2026-05-06 – 2026-05-07
Provider exclusions and sanctions in Illinois
Illinois reports 2,000 OIG LEIE federal exclusion records by address state, drawn from the OIG List of Excluded Individuals and Entities (refreshed monthly). State Medicaid exclusion lists are tracked for select states; Illinois is covered by the federal OIG list on the sanctions hub. Each record links to its source exclusion list.
Related Illinois healthcare data
- Hospital operating margins in Illinois
CMS HCRIS cost-report margins vs the national average.
- Oncology (Medical) access gap in Illinois
1.7 per 100k — national density rank #27.
- Obstetrics & Gynecology access gap in Illinois
2.2 per 100k — national density rank #31.
- Plastic Surgery access gap in Illinois
2.0 per 100k — national density rank #16.
- Nursing homes in Illinois
667 Medicare-certified nursing homes on CMS Care Compare.
- Home health agencies in Illinois
526 Medicare-certified home health agencies on CMS Care Compare.
- Dialysis facilities in Illinois
340 Medicare-certified dialysis facilities on CMS Care Compare.
- Hospitals in Illinois
194 Medicare-certified hospitals on CMS Care Compare.
- Hospice providers in Illinois
147 Medicare-certified hospice providers on CMS Care Compare.
- Ambulatory surgical centers in Illinois
129 Medicare-certified ambulatory surgical centers on CMS Care Compare.
Frequently asked questions about Illinois providers
How many healthcare providers does Fonteum track in Illinois?
- Fonteum tracks 16,413 providers in Illinois across the 14 medical specialties it currently ingests from the CMS NPPES NPI Registry. This is the supply within those tracked specialties, not every NPPES-registered provider in Illinois. The snapshot date is 2026-05-06 – 2026-05-07.
Which medical specialty has the most providers in Illinois?
- Among the 14 tracked specialties, Chiropractic is the largest in Illinois with 4,603 providers, or 36.2 per 100,000 residents — a national density rank of #14 of 51. Counts come from the CMS NPPES NPI Registry.
What Medicare-certified facilities are in Illinois?
- Illinois has 2,003 Medicare-certified facilities across 6 families Fonteum tracks from CMS Care Compare, including nursing homes, hospitals, home health agencies, hospices, dialysis facilities, and ambulatory surgical centers. Each family links to its facility-level Care Compare page for Illinois.
Are there provider exclusions or sanctions in Illinois?
- Illinois reports 2,000 OIG LEIE federal exclusion records by address state, drawn from the OIG List of Excluded Individuals and Entities (refreshed monthly). State Medicaid exclusion lists are tracked for select states; Illinois is covered by the federal OIG list on the sanctions hub. Each record links to its source exclusion list.
Does Fonteum track shortage areas in Illinois?
- HRSA currently designates 729 active Health Professional Shortage Areas in Illinois — 295 primary care, 250 dental health, and 184 mental health. A HPSA marks a geography, population, or facility with too few clinicians relative to need, scored 0–26 by HRSA.
How current is the Illinois provider data?
- The Illinois provider counts reflect the CMS NPPES supply-by-state snapshot dated 2026-05-06 – 2026-05-07, under methodology nppes-supply-by-state/v2026.05. NPPES refreshes weekly and Care Compare monthly; Fonteum re-snapshots on that cadence. Every field on this page carries its source name and snapshot date.
How Illinois provider data is built
Provider counts aggregate the CMS NPPES supply-by-state datasets under methodology nppes-supply-by-state/v2026.05; facility counts read the latest CMS Care Compare snapshots; HPSA and exclusion figures draw from HRSA and OIG / state Medicaid sources. Each value is source-provenanced — its source name, snapshot date, and methodology version travel with it.
NPPES dataset · Methodology · Source registry · Browse by specialty · All states
Fonteum is a US healthcare provenance registry that publishes signed, chain-of-custody-attested research and data pages on Medicare, Medicaid, and federal regulator datasets, drawing from 44 federal source families across CMS, OIG, HRSA, AHRQ, and HHS.