Quick answers
- Does Justin M. Lareau accept Medicare assignment?
- Yes. Medicare's clinician data says Justin M. Lareau 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 M. Lareau see?
- In 2024, CMS data shows 891 Original Medicare patients and 3,744 services for Justin M. Lareau. This counts Original Medicare only and measures volume, not quality.
- What is Justin M. Lareau's NPI number?
- 1992915805. 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 M. Lareau, 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 | 891 |
|---|---|
| Services billed to Medicare | 3,744 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of knee, 4 or more views (73564)585 services
- Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg (J0702)440 services
- X-ray of hip, 2-3 views (73502)356 services
- X-ray of knee, 3 views (73562)345 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)323 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 disease26%
- Diabetes22%
- Anxiety20%
Hospitals where Justin M. Lareau works
Medicare's Facility Affiliation Data lists Justin M. Lareau 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 Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140213
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140304
- UChicago Medicine AdventHealth HinsdaleHinsdale, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140122
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140065
Practice locations
Addresses where Justin M. Lareau is enrolled with Medicare (CMS data updated October 2, 2026).
- 1870 Silver Cross BlvdNew Lenox, IL 60451 (815) 462‑3474
Group practices
Medicare enrollment lists Justin M. Lareau 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
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 | University Of Michigan Medical School |
| 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) | 1992915805 |
| 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