Quick answers
- Does Donatas A. Siliunas accept Medicare assignment?
- Yes. Medicare's clinician data says Donatas A. Siliunas 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 Donatas A. Siliunas see?
- In 2024, CMS data shows 3,528 Original Medicare patients and 6,086 services for Donatas A. Siliunas. This counts Original Medicare only and measures volume, not quality.
- What is Donatas A. Siliunas's NPI number?
- 1548261910. 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 Donatas A. Siliunas, 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 | 3,528 |
|---|---|
| Services billed to Medicare | 6,086 |
| Different services or procedures | 219 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)704 services
- Screening mammography (77067)659 services
- Screening 3d breast mammography (77063)658 services
- X-ray of chest, 2 views (71046)265 services
- Ct scan of abdomen and pelvis without contrast (74176)199 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%
- Arthritis55%
- Ischemic heart disease42%
- Diabetes37%
- Chronic kidney disease32%
Hospitals where Donatas A. Siliunas works
Medicare's Facility Affiliation Data lists Donatas A. Siliunas 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.
- Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140258
- Javon Bea HospitalRockford, IL · Acute Care Hospital · closed, according to its website · CCN 140239
- Lima Memorial Health SystemLima, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360009
- Riverside Medical CenterKankakee, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140186
- Thorek Memorial HospitalChicago, IL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 140115
Practice locations
Addresses where Donatas A. Siliunas is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 14; the Medicare profile lists all.
- 1044 N Francisco AveChicago, IL 60622 (773) 292‑8227
- 105 S 1st StWillmington, IL 60481 (815) 476‑5210
- 1641 Foster CirAlgonquin, IL 60102 (559) 256‑1975
- 416 Connable AvePetoskey, MI 49770 (951) 786‑0801
- 5000 Prairie Rose DrRoscoe, IL 61073 (815) 971‑2000
Group practices
Medicare enrollment lists Donatas A. Siliunas as a member of these groups (CMS data updated October 2, 2026).
- Mercy Health System Corporation753 clinicians in the group
- Rockford Health Physicians521 clinicians in the group
- Riverside Health System199 clinicians in the group
- Humboldt Park Health110 clinicians in the group
- Central Valley Community Medical Imaging96 clinicians in the group
- Pco PC82 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
Other radiologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Mercy Health System Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548261910 |
| 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