Quick answers
- Does Justin J. Gent accept Medicare assignment?
- Yes. Medicare's clinician data says Justin J. Gent 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 Justin J. Gent see?
- In 2024, CMS data shows 597 Original Medicare patients and 6,538 services for Justin J. Gent. This counts Original Medicare only and measures volume, not quality.
- What is Justin J. Gent's NPI number?
- 1154577823. 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 Justin J. Gent, 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 | 597 |
|---|---|
| Services billed to Medicare | 6,538 |
| Different services or procedures | 91 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)3,585 services
- Aspiration and/or injection of fluid from large joint (20610)569 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)307 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)245 services
- Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose (J7323)221 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 pressure70%
- Ischemic heart disease29%
- Diabetes24%
- Anxiety22%
Hospitals where Justin J. Gent works
Medicare's Facility Affiliation Data lists Justin J. Gent 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.
- Advocate Good Shepherd HospitalBarrington, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140291
- Mercyhealth Hospital & Physician Clinic-Crystal LACrystal Lake, IL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 140308
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
Practice locations
Addresses where Justin J. Gent is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 2101 Waukegan RdBannockburn, IL 60015
- 2719 W Algonquin RdAlgonquin, IL 60102 (847) 381‑0388
- 406 Front StMcHenry, IL 60050
- 718 Florsheim DrLibertyville, IL 60048 (847) 362‑4483
- 720 Florsheim DrLibertyville, IL 60048 (847) 247‑4000
Group practices
Medicare enrollment lists Justin J. Gent 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 Bannockburn
Clinicians with the same Medicare primary specialty in Bannockburn, 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 | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154577823 |
| 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