Dr. John McCallum, M.D.
Contact & Location
203-483-2509
Branford, CT 06405
Wallingford, CT 06492
Hamden, CT 06518
Guilford, CT 06437
Dr. McCallum performs more knee replacement procedures than 97% of orthopedic surgeons in Connecticut, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #2 of 67 ranked knee surgeons in Connecticut.
About Dr. McCallum
Practice. Dr. John McCallum is a board-certified orthopedic surgeon practicing in Hamden, Connecticut. The latest annual CMS data records 81 knee replacements. That is #2 in Connecticut for knee replacement. Dr. McCallum also holds credentials in Adult Reconstructive Orthopaedic Surgery. A Medicare provider since 2005.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 163 in 2017 and stands at 81 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 81 procedures is above the national average of 45.
Local context. Hamden has 8 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 90 |
| 2014 | 120 |
| 2015 | 101 |
| 2016 | 144 |
| 2017 | 163 |
| 2018 | 135 |
| 2019 | 116 |
| 2020 | 93 |
| 2021 | 97 |
| 2022 | 109 |
| 2023 | 106 |
| 2024 | 81 |
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. 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. McCallum Compares
Procedure volume compared to the Connecticut state average.
Volume Trend Analysis
Dr. McCallum's recorded volume peaked at 163 procedures in 2017 and stood at 81 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
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. McCallum
How does Dr. McCallum's procedure volume compare to other Connecticut surgeons?
Dr. McCallum has performed 81 Medicare-verified joint replacement procedures. This is significantly above the Connecticut average of 49 procedures per surgeon. Dr. McCallum ranks #20 out of 94 orthopedic surgeons in Connecticut.
What types of joint replacement does Dr. McCallum perform?
Dr. McCallum's reported Medicare volume is focused on knee replacement, with 81 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. McCallum with knee replacement surgery?
Dr. McCallum ranks #2 in Connecticut for knee replacement with 81 Medicare-verified procedures. This high ranking among 94 state surgeons indicates significant experience with this specific procedure.
Where is Dr. McCallum's practice located?
Dr. McCallum's current practice address is in Branford, CT. That address is the current practice address in Dr. McCallum's own CMS NPPES registry entry, which providers maintain themselves. The Medicare claims data used for the rankings on this page was billed from Hamden, Connecticut.
What does the Medicare data for Dr. McCallum 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, which puts Dr. McCallum's total volume across all insurers at roughly 290 to 350 procedures against the 81 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. McCallum's procedure volume changed over time?
Dr. McCallum's Medicare-recorded volume peaked at 163 procedures in 2017 and was 81 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.
Which hospitals is Dr. McCallum affiliated with?
According to CMS facility affiliation data, Dr. McCallum is affiliated with Midstate Medical Center, Yale-New Haven Hospital.
How does Dr. McCallum compare to other orthopedic surgeons in Hamden?
Among the 8 orthopedic surgeons in Hamden, Dr. McCallum ranks #2 by total Medicare procedure volume. Dr. McCallum is among the highest-volume surgeons in Hamden.
What are the quality ratings for hospitals where Dr. McCallum practices?
Midstate Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Yale-New Haven Hospital (3 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 Hamden, Connecticut
Dr. McCallum's 81 Medicare procedures are above the Hamden average of 50. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hamden.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Stephen Nelson | 81 | Hip, Knee |
| Dr. John Irving | 69 | Hip, Knee |
| Dr. Eric Padegimas | 45 | Shoulder |
| Dr. John Daigneault | 33 | Shoulder |
| Dr. Derek Shia | 23 | Shoulder |
| Dr. Kenoma Anighoro | 16 | Hip |
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.