Dr. Karl Roberts, M.D.
Contact & Location
Grand Rapids, MI 49546
Dr. Karl Roberts is a board-certified orthopedic surgeon practicing in Grand Rapids, Michigan. A Medicare provider since 2006, Dr. Roberts has performed 31 Medicare-verified knee replacements (#88 in Michigan) and 11 hip replacements, for a combined total of 42 procedures.
In Michigan, Dr. Roberts performs near average in knee (31 vs 34 avg), below average in hip (11 vs 29 avg).
Dr. Roberts's reported Medicare volume is split between knee replacements (31 cases) and hip replacements (11 cases).
Grand Rapids is home to 16 orthopedic surgeons in the current Medicare dataset. Patients in the Grand Rapids area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Roberts extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 32 to 42 in the most recent data, a 31% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Roberts's 31 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.
How Dr. Roberts Compares
Procedure volume compared to the Michigan state average.
Volume Trend Analysis
Dr. Roberts's Medicare-recorded procedure volume has trended upward over 12 years, increasing 31% from 32 procedures in 2013 to 42 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Roberts
How does Dr. Roberts's procedure volume compare to other Michigan surgeons?
Dr. Roberts has performed 42 Medicare-verified joint replacement procedures. This is in line with the Michigan average of 49 procedures per surgeon. Dr. Roberts ranks #124 out of 256 orthopedic surgeons in Michigan.
What types of joint replacement does Dr. Roberts perform?
Dr. Roberts's Medicare data shows procedures in knee replacement (31 cases) and hip replacement (11 cases).
Are there other orthopedic surgeons near Dr. Roberts in Grand Rapids?
Yes. There are 16 orthopedic surgeons in Grand Rapids 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 Michigan surgeons.
What does the Medicare data for Dr. Roberts represent?
The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Roberts's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 42 procedures shown here.
Has Dr. Roberts's procedure volume changed over time?
Yes. Dr. Roberts's Medicare-recorded volume has increased from 32 procedures in 2013 to 42 in the most recent data, a 31% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 57 procedures in 2017.
Does Dr. Roberts perform more than one type of joint replacement?
Yes. Dr. Roberts's Medicare data shows procedures in knee replacement (31 cases), hip replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Roberts affiliated with?
According to CMS facility affiliation data, Dr. Roberts is affiliated with Corewell Health Grand Rapids Hospitals Butterworth, Corewell Health Big Rapids Hospital.
How does Dr. Roberts compare to other orthopedic surgeons in Grand Rapids?
Among the 16 orthopedic surgeons in Grand Rapids, Dr. Roberts ranks #10 by total Medicare procedure volume. The highest-volume surgeon in Grand Rapids has 148 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Roberts practices?
Corewell Health Grand Rapids Hospitals Butterworth (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Corewell Health Big Rapids Hospital (3 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Grand Rapids, Michigan
Dr. Roberts's 42 Medicare procedures are below the Grand Rapids average of 78. The table below compares verified procedure volumes for orthopedic surgeons practicing in Grand Rapids.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Charles Crellin | 148 | Hip, Knee |
| Dr. Charles Sherry | 99 | Hip, Knee |
| Dr. Kory Johnson | 89 | Hip, Knee |
| Dr. Thomas Malvitz | 63 | Hip, Knee |
| Dr. John Mahajan | 58 | Hip, Knee |
| Dr. Paull Gossett | 49 | Hip, 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.