Quick answers
- Does Liam J. Fischer accept Medicare assignment?
- Yes. Medicare's clinician data says Liam J. Fischer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Liam J. Fischer see?
- In 2024, CMS data shows 2,249 Original Medicare patients and 3,149 services for Liam J. Fischer. This counts Original Medicare only and measures volume, not quality.
- What is Liam J. Fischer's NPI number?
- 1528449634. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Liam J. Fischer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,249 |
|---|---|
| Services billed to Medicare | 3,149 |
| Different services or procedures | 134 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)451 services
- Mri scan of lower spinal canal without contrast (72148)171 services
- Ct scan head or brain without contrast (70450)137 services
- X-ray of knee, 3 views (73562)127 services
- X-ray of chest, 2 views (71046)115 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Ischemic heart disease45%
- Diabetes39%
- Anxiety34%
Hospitals where Liam J. Fischer works
Medicare's Facility Affiliation Data lists Liam J. Fischer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Anderson HospitalMaryville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140289
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
- St Francis HospitalLitchfield, IL · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 141350
- St Johns HospitalSpringfield, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140053
- St Marys HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140166
Practice locations
Addresses where Liam J. Fischer is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 17; the Medicare profile lists all.
- 1 Saint Elizabeth BlvdO Fallon, IL 62269 (618) 234‑2120
- 108 W US Hwy 40Troy, IL 62294 (618) 667‑1800
- 1215 Franciscan DrLitchfield, IL 62056 (217) 324‑2191
- 12866 Troxler AveHighland, IL 62249 (309) 740‑4272
- 1512 N Green Mount RdO Fallon, IL 62269 (618) 234‑2120
Group practices
Medicare enrollment lists Liam J. Fischer as a member of this group (CMS data updated October 2, 2026).
- Central Illinois Radiological Associates Ltd209 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, IL — not a recommendation.
Other clinicians in Central Illinois Radiological Associates Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528449634 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians