Allergy/ Immunology in Illinois
Individual Allergy/ Immunology providers billing Original Medicare Part B in Illinois: 145 in 2024.
See available data · View sample report · What a Market Comparison contains
Available data
- individual providers, 2024
- 145
- data years
- 5
- groups listed
- 7
Specialty, geography, providers by year and peer group
- Specialty
- Allergy/ Immunology (the provider type on the Medicare claims record; individuals only)
- Geography
- Illinois.
- Data years
- 2020, 2021, 2022, 2023, 2024
- Providers by year
- 2020: 156 · 2021: 150 · 2022: 147 · 2023: 149 · 2024: 145
- Peer group for ranks
- The cohort is Illinois itself: ranks and positions are among its own providers (at least 20), so no geographic fallback applies.
Fee schedule change for Allergy/ Immunology, 2026 to 2027 (proposed rule)
At the 2027 proposed rule rates, the median change in calculated Medicare allowed for Allergy/ Immunology clinicians in Illinois is −1.7%, on the same services as in 2024 (middle half −2.2% to −1.1%, 137 clinicians).
calculated at each clinician's published code mix; volume held fixed; proposed rule.
By area, and what the calculation leaves out2 areas
| Area | Clinicians | Median change | Middle half |
|---|---|---|---|
| Illinois | 137 | −1.7% | −2.2% to −1.1% |
| United States | 3,081 | −2.2% | −2.9% to −1.2% |
Codes this specialty billed in 2024 that have no 2027 rate in the proposed rule (deleted or not listed; left out of the calculation, never estimated): 95800, 95806.
104 codes are new in the 2027 proposed rule (not in any 2024 code mix); 53 codes move to a national rate from a 2026 status without one (carrier-priced and others); lines in those codes are left out of the calculation.
Each clinician’s own figure, with the codes behind it, is in the Physician Report. How this is calculated.
Telehealth-only services and setting, Allergy/ Immunology, 2020–2024
In 2024, 0.2% of Allergy/ Immunology Medicare work in Illinois was in telehealth-only services (2.7% in 2020), a floor of all telehealth work; 94% was billed at the office (non-facility) rate and 6% at the facility rate.
Share of work by setting, by year: table2 areas
Illinois: share of calculated Medicare work RVUs by setting
| Year | Telehealth-only | Office rate | Facility rate | Clinicians | Share with any telehealth-only |
|---|---|---|---|---|---|
| 2020 | 2.7% | 91% | 6% | 147 | 17% |
| 2021 | 1.2% | 93% | 6% | 145 | 10% |
| 2022 | 0.3% | 95% | 4% | 140 | 4% |
| 2023 | 0.1% | 95% | 5% | 139 | 2% |
| 2024 | 0.2% | 94% | 6% | 137 | 2% |
United States: share of calculated Medicare work RVUs by setting
| Year | Telehealth-only | Office rate | Facility rate | Clinicians | Share with any telehealth-only |
|---|---|---|---|---|---|
| 2020 | 1.6% | 94% | 5% | 3,145 | 14% |
| 2021 | 0.8% | 95% | 4% | 3,143 | 7% |
| 2022 | 0.4% | 95% | 4% | 3,100 | 4% |
| 2023 | 0.2% | 96% | 4% | 3,092 | 2% |
| 2024 | 0.2% | 95% | 4% | 3,082 | 2% |
Telehealth-only services are codes that exist only as remote services (telephone and online visits, virtual check-ins, telehealth consultations). The share is a floor, not total telehealth: CMS publishes the place of service only as facility or non-facility and does not publish telehealth modifiers, so a video visit billed with an ordinary visit code is counted in the setting CMS records. Every year is weighted at the 2024 work relative values, so a share moves only when the services billed move. Cells of at least 11 clinicians. How this is calculated.
Market Comparison
One specialty in one market (a metro area, a state's area outside metro areas, a whole state or the United States): each cohort member's figures and rank, the distribution, percentiles and trend, plus the full report of a selected physician who is in that market, for 12 months.
Reports are not on sale yet.
View sample reportWhat the Market Comparison contains
Show details1 known limitation
Included
- The cohort table: each clinician's exact Medicare payment, calculated work RVUs and rank in this specialty and market
- A ranked list of every clinician in this specialty and market by Medicare payment or work RVUs, opening at the selected physician with those just above and below
- Each listed clinician's codes for a data year: every code line with place of service, services, beneficiaries, Medicare payment and work RVUs
- Medians, percentiles, the distribution and the trend for this specialty and market
- Estimated figures and the offer calculator for this market
- The full Physician Report of the selected physician, when that physician is in this market
- A downloadable market report (PDF)
Not included
- Other specialties and other markets
- Multi-year history, peer comparisons and the printable report of clinicians other than the selected physician (each one's Physician Report)
- Peer comparison flags (professional subscription, not sold)
Known limitations
- CMS suppresses code lines with fewer than 11 beneficiaries, so calculated work RVUs are a floor.
Allergy/ Immunology by metro area in Illinois
Show details12 areas
A Market Comparison is also prepared for each metro area and for the area outside metro areas. Alphabetical; provider counts are for 2024.
- Bloomington, IL (1)
- Carbondale, IL (1)
- Champaign-Urbana, IL (2)
- Chicago-Naperville-Elgin, IL-IN (135)
- Davenport-Moline-Rock Island, IA-IL (2)
- Decatur, IL (1)
- Freeport, IL (1)
- Peoria, IL (2)
- Quincy, IL-MO (2)
- Rockford, IL (2)
- Springfield, IL (2)
- St. Louis, MO-IL (45)
Groups with the most Allergy/ Immunology providers in Illinois
Show details7 groups
- Endeavor Health Medical Group (12 Allergy/ Immunology providers)
- Northwestern Medical Faculty Foundation (11 Allergy/ Immunology providers)
- Rush University Medical Group (6 Allergy/ Immunology providers)
- Allergy Partners PLLC (5 Allergy/ Immunology providers)
- Dupage Medical Group Ltd (5 Allergy/ Immunology providers)
- Central Dupage Physician Group (4 Allergy/ Immunology providers)
- Springfield Clinic, LLP (4 Allergy/ Immunology providers)
Group affiliation: CMS Doctors and Clinicians file; data year 2024. Ordered by the count of providers of the specialty, then by name; groups tied at the end of the list are left out.
Original Medicare Part B fee-for-service only; payments go to the billing entity. How every figure is computed: methodology, including known limitations.
Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service).