Dr. John McInnis, M.D.
Contact & Location
Concord, MA 01742
Dr. John McInnis is a board-certified orthopedic surgeon practicing in Concord, Massachusetts. A Medicare provider since 2006, Dr. McInnis has performed 11 Medicare-verified knee replacements, ranking #158 in Massachusetts.
In Massachusetts, Dr. McInnis performs below average in knee (11 vs 50 avg).
Dr. McInnis's Medicare data shows a focused knee replacement practice with 11 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Concord is home to 4 orthopedic surgeons in the current Medicare dataset. Patients in the Concord area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. McInnis's Medicare data spans 12 years, beginning in 2013. Volume peaked at 114 procedures in 2021 before settling at 11 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. McInnis's 11 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. McInnis Compares
Procedure volume compared to the Massachusetts state average.
Volume Trend Analysis
Dr. McInnis's recorded volume peaked at 114 procedures in 2021 and stood at 11 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. McInnis
How does Dr. McInnis's procedure volume compare to other Massachusetts surgeons?
Dr. McInnis has performed 11 Medicare-verified joint replacement procedures. The Massachusetts average is 74 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. McInnis ranks #199 out of 203 orthopedic surgeons in Massachusetts.
What types of joint replacement does Dr. McInnis perform?
Dr. McInnis's reported Medicare volume is focused on knee replacement, with 11 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. McInnis in Concord?
Yes. There are 4 orthopedic surgeons in Concord 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 Massachusetts surgeons.
What does the Medicare data for Dr. McInnis 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. McInnis's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 11 procedures shown here.
Has Dr. McInnis's procedure volume changed over time?
Dr. McInnis's Medicare-recorded volume peaked at 114 procedures in 2021 and was 11 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
How does Dr. McInnis compare to other orthopedic surgeons in Concord?
Among the 4 orthopedic surgeons in Concord, Dr. McInnis ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Concord has 129 verified Medicare procedures.
Other Orthopedic Surgeons in Concord, Massachusetts
Dr. McInnis's 11 Medicare procedures are below the Concord average of 50. The table below compares verified procedure volumes for orthopedic surgeons practicing in Concord.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Matthew Sloan | 129 | Hip, Knee |
| Dr. Paul Re | 48 | Shoulder |
| Dr. Donald Driscoll | 11 | 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.