Quick answers
- Does Susan J. Laduzinsky accept Medicare assignment?
- Yes. Medicare's clinician data says Susan J. Laduzinsky 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 Susan J. Laduzinsky see?
- In 2024, CMS data shows 204 Original Medicare patients and 2,229 services for Susan J. Laduzinsky. This counts Original Medicare only and measures volume, not quality.
- What is Susan J. Laduzinsky's NPI number?
- 1942202155. 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 Susan J. Laduzinsky, 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 | 204 |
|---|---|
| Services billed to Medicare | 2,229 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)951 services
- Calculation of radiation therapy dose (77300)297 services
- Design and construction of complex radiation treatment device (77334)200 services
- Radiation treatment management, 5 treatment sessions (77427)181 services
- Complex radiation therapy planning (77263)80 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis51%
- Ischemic heart disease44%
- Diabetes34%
Hospitals where Susan J. Laduzinsky works
Medicare's Facility Affiliation Data lists Susan J. Laduzinsky 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.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
- Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185
Practice locations
Addresses where Susan J. Laduzinsky is enrolled with Medicare (CMS data updated October 2, 2026).
- 1404 Cross StShiloh, IL 62269
- 4500 Memorial DrBelleville, IL 62226
- 4921 Parkview Pl, Lowr LvlSaint Louis, MO 63110 (314) 362‑9715
- 5225 Mid America PlzSaint Louis, MO 63129 (314) 286‑1911
Group practices
Medicare enrollment lists Susan J. Laduzinsky as a member of these groups (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
- Washington University Physicians in Illinois Inc175 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Shiloh
Clinicians with the same Medicare primary specialty in Shiloh, IL — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942202155 |
| 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