Quick answers
- Does Firas M. Sibai accept Medicare assignment?
- Yes. Medicare's clinician data says Firas M. Sibai 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 Firas M. Sibai see?
- In 2024, CMS data shows 536 Original Medicare patients and 1,357 services for Firas M. Sibai. This counts Original Medicare only and measures volume, not quality.
- What is Firas M. Sibai's NPI number?
- 1194987032. 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 Firas M. Sibai, 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 | 536 |
|---|---|
| Services billed to Medicare | 1,357 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)988 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)118 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)74 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)67 services
- Aspiration and/or injection of fluid from large joint (20610)39 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%
- Arthritis75%
- Ischemic heart disease37%
- Chronic kidney disease31%
- Diabetes30%
Hospitals where Firas M. Sibai works
Medicare's Facility Affiliation Data lists Firas M. Sibai 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
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140304
Practice locations
Addresses where Firas M. Sibai is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 S 1st StWillmington, IL 60481 (815) 476‑5210
- 23120 S Lagrange Rd, Suite 200Frankfort, IL 60423 (815) 464‑5440
- 375 N Wall St, P520Kankakee, IL 60901 (815) 933‑0194
Group practices
Medicare enrollment lists Firas M. Sibai as a member of this group (CMS data updated October 2, 2026).
- Riverside Health System199 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Riverside Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1194987032 |
| 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