Medicare provider payments and utilization data for Illinois (IL)
Illinois received $35.4B in total Medicare provider payments across 10 years of data.
The top specialty by spending is Clinical Laboratory, accounting for $800.4M in payments across 206 providers.
In 2023, 47.3K providers were actively billing Medicare in Illinois.
Annual Medicare spending grew 30% from 2014 to 2023.
AI-generated analysis based on Medicare payment data.
Providers in this state flagged by the ML v2 fraud detection model
| Year | Payments | Services | Providers | YoY Change |
|---|---|---|---|---|
| 2014 | $3.3B | 93.2M | 39.6K | — |
| 2015 | $3.3B | 93.4M | 40.3K | -0.5% |
| 2016 | $3.4B | 94.2M | 41.5K | +2.4% |
| 2017 | $3.4B | 95.0M | 42.8K | +1.2% |
| 2018 | $3.5B | 99.3M | 43.8K | +2.7% |
| 2019 | $3.6B | 103.9M | 45.0K | +4.1% |
| 2020 | $3.2B | 92.9M | 44.3K | -10.9% |
| 2021 | $3.6B | 103.1M | 45.5K | +13.1% |
| 2022 | $3.8B | 122.9M | 46.2K | +4.9% |
| 2023 | $4.3B | 145.6M | 47.3K | +11.4% |
| Code | Description | Payments | Services | Providers |
|---|---|---|---|---|
| K1034 | Provision of covid-19 test, nonprescription self-administered and self-collected use, fda approved, authorized or cleared, one test count | $476.3M | 40.6M | 1.1K |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | $316.9M | 3.7M | 18.5K |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | $152.3M | 2.6M | 17.4K |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | $112.2M | 1.2M | 6.0K |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | $98.9M | 1.6M | 8.0K |
| J0178 | Injection, aflibercept, 1 mg | $95.7M | 139.2K | 139 |
| 81455 | Targeted genomic sequence analysis panel of dna or combine dna and rna of 51 or greater genes associated with blood and lymphatic system disorders | $86.5M | 30.3K | 2 |
| A0427 | Ambulance service, advanced life support, emergency transport, level 1 (als 1 - emergency) | $77.3M | 194.0K | 438 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | $64.6M | 471.6K | 6.2K |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | $63.0M | 510.2K | 6.2K |
| 99285 | Emergency department visit with high level of medical decision making | $61.0M | 429.1K | 2.6K |
| J9271 | Injection, pembrolizumab, 1 mg | $60.4M | 1.4M | 107 |
| 66984 | Removal of cataract with insertion of prosthetic lens | $56.0M | 768.2K | 572 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | $54.8M | 421.1K | 4.0K |
| 97110 | Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | $53.0M | 3.0M | 4.1K |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | $47.7M | 416.6K | 8.6K |
| 97530 | Therapy procedure using functional activities | $47.1M | 1.9M | 3.3K |
| 81456 | Targeted genomic sequence analysis panel of rna of 51 or greater genes associated with blood and lymphatic system disorders | $42.0M | 14.7K | 1 |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | $41.3M | 536.0K | 1.4K |
| 99291 | Critical care, first 30-74 minutes | $39.4M | 226.1K | 2.9K |
| Specialty | Payments | Providers | Avg per Provider |
|---|---|---|---|
| Clinical Laboratory | $800.4M | 206 | $3.9M |
| Internal Medicine | $304.7M | 3.7K | $83.0K |
| Ophthalmology | $276.2M | 654 | $422.4K |
| Nurse Practitioner | $206.3M | 6.8K | $30.3K |
| Ambulance Service Provider | $194.6M | 532 | $365.8K |
| Family Practice | $184.4M | 3.0K | $60.6K |
| Physical Therapist in Private Practice | $147.7M | 3.5K | $42.1K |
| Hematology-Oncology | $139.5M | 415 | $336.3K |
| Diagnostic Radiology | $133.8M | 1.3K | $103.8K |
| Ambulatory Surgical Center | $118.0M | 119 | $991.9K |
| Cardiology | $115.7M | 671 | $172.4K |
| Dermatology | $93.8M | 454 | $206.7K |
| Emergency Medicine | $93.0M | 2.1K | $43.6K |
| Orthopedic Surgery | $91.0M | 741 | $122.8K |
| Podiatry | $72.2M | 829 | $87.1K |
| Physician Assistant | $67.9M | 2.8K | $24.7K |
| Nephrology | $62.5M | 398 | $157.1K |
| Hospitalist | $60.2M | 1.1K | $55.9K |
| Rheumatology | $58.5M | 200 | $292.6K |
| Independent Diagnostic Testing Facility (IDTF) | $53.3M | 97 | $549.5K |
| Urology | $52.2M | 330 | $158.1K |
| Interventional Cardiology | $50.1M | 240 | $208.8K |
| Mass Immunizer Roster Biller | $48.5M | 848 | $57.2K |
| Physical Medicine and Rehabilitation | $48.1M | 333 | $144.3K |
| Gastroenterology | $45.7M | 560 | $81.6K |
Last Updated: February 2026 (data through 2023, the latest CMS release)
Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.