Dr. Brian Flanagan, M.D.
Contact & Location
815-356-5200
Crystal Lake, IL 60012
Huntley, IL 60142
Dr. Flanagan performs more knee replacement procedures than 85% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #36 of 251 ranked knee surgeons in Illinois.
About Dr. Flanagan
Dr. Brian Flanagan is a board-certified orthopedic surgeon practicing in Crystal Lake, Illinois. A Medicare provider since 2011, Dr. Flanagan performed 94 Medicare-verified knee replacements (#36 in Illinois) and 41 hip replacements in the latest annual CMS data, for a combined total of 135 procedures.
In Illinois, Dr. Flanagan performs above the state average in knee (94 vs 50), near the state average in hip (41 vs 39).
Dr. Flanagan's reported Medicare volume is split between knee replacements (94 cases) and hip replacements (41 cases).
Crystal Lake is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Crystal Lake area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Flanagan extend back to 2018, covering 7 years of data. Over that period, recorded procedure volume increased from 54 to 135 in the most recent data, a 150% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Flanagan's 94 verified procedures is more than 2x the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 24 | 30 |
| 2019 | 51 | 78 |
| 2020 | 46 | 66 |
| 2021 | 46 | 91 |
| 2022 | 55 | 99 |
| 2023 | 71 | 120 |
| 2024 | 41 | 94 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Flanagan Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Flanagan's Medicare-recorded procedure volume has trended upward over 7 years, increasing 150% from 54 procedures in 2018 to 135 in the most recent data.
Hospital Affiliations & Quality
Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.
Patient Resources: Preparing for Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Flanagan
How does Dr. Flanagan's procedure volume compare to other Illinois surgeons?
Dr. Flanagan has performed 135 Medicare-verified joint replacement procedures. This is significantly above the Illinois average of 69 procedures per surgeon. Dr. Flanagan ranks #46 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Flanagan perform?
Dr. Flanagan's Medicare data shows procedures in knee replacement (94 cases) and hip replacement (41 cases).
Are there other orthopedic surgeons near Dr. Flanagan in Crystal Lake?
Yes. There are 2 orthopedic surgeons in Crystal Lake in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Illinois surgeons.
What does the Medicare data for Dr. Flanagan represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Flanagan's total volume across all insurers at roughly 460 to 570 procedures against the 135 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Flanagan's procedure volume changed over time?
Yes. Dr. Flanagan's Medicare-recorded volume has increased from 54 procedures in 2018 to 135 in the most recent data, a 150% increase over 7 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 191 procedures in 2023.
Does Dr. Flanagan perform more than one type of joint replacement?
Yes. Dr. Flanagan's Medicare data shows procedures in knee replacement (94 cases), hip replacement (41 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Flanagan affiliated with?
According to CMS facility affiliation data, Dr. Flanagan is affiliated with Northwestern Medicine Mchenry Hospital, Northwestern Medicine Central Dupage Hospital, Northwestern Lake Forest Hospital.
What are the quality ratings for hospitals where Dr. Flanagan practices?
Northwestern Medicine Mchenry Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Central Dupage Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Lake Forest Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Crystal Lake, Illinois
Dr. Flanagan's 135 Medicare procedures are above the Crystal Lake average of 75. The table below compares verified procedure volumes for orthopedic surgeons practicing in Crystal Lake.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Marko Krpan | 15 | Knee |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.