Quick answers
- Does Tomasz T. Antkowiak accept Medicare assignment?
- Yes. Medicare's clinician data says Tomasz T. Antkowiak 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 Tomasz T. Antkowiak see?
- In 2024, CMS data shows 421 Original Medicare patients and 9,593 services for Tomasz T. Antkowiak. This counts Original Medicare only and measures volume, not quality.
- What is Tomasz T. Antkowiak's NPI number?
- 1881851210. 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 Tomasz T. Antkowiak, 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 | 421 |
|---|---|
| Services billed to Medicare | 9,593 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)8,023 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)336 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)150 services
- X-ray of shoulder, minimum of 2 views (73030)136 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)97 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 cholesterol75%
- Arthritis75%
- High blood pressure71%
- Ischemic heart disease29%
- Diabetes24%
- Anxiety20%
Hospitals where Tomasz T. Antkowiak works
Medicare's Facility Affiliation Data lists Tomasz T. Antkowiak 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.
- Presence St Marys HospitalKankakee, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140155
- Riverside Medical CenterKankakee, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140186
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140213
Practice locations
Addresses where Tomasz T. Antkowiak is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1870 Silver Cross BlvdNew Lenox, IL 60451 (815) 462‑3474
- 1900 Silver Cross BlvdNew Lenox, IL 60451 (815) 300‑7097
- 19552 S Harlem AveFrankfort, IL 60423 (815) 469‑3453
- 2101 Waukegan RdBannockburn, IL 60015
- 500 W Court StKankakee, IL 60901 (815) 937‑2400
Group practices
Medicare enrollment lists Tomasz T. Antkowiak as a member of this group (CMS data updated October 2, 2026).
- Illinois Bone and Joint Institute, LLC604 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
- Sports Medicinealso
Other orthopedic surgeons in New Lenox
Clinicians with the same Medicare primary specialty in New Lenox, IL — not a recommendation.
Other clinicians in Illinois Bone and Joint Institute, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881851210 |
| 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