Dr. James Cahill, MD
Contact & Location
Hackensack, NJ 07601
Dr. James Cahill is a board-certified orthopedic surgeon practicing in Hackensack, New Jersey. A Medicare provider since 2006, Dr. Cahill has performed 85 Medicare-verified knee replacements (#27 in New Jersey) and 37 hip replacements, for a combined total of 122 procedures.
In New Jersey, Dr. Cahill performs above average in knee (85 vs 54 avg), near average in hip (37 vs 44 avg).
Dr. Cahill's reported Medicare volume is split between knee replacements (85 cases) and hip replacements (37 cases).
Hackensack is home to 8 orthopedic surgeons in the current Medicare dataset. Patients in the Hackensack area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Cahill extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 75 to 122 in the most recent data, a 63% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Cahill's 85 verified procedures is above the national average of 45.
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. Cahill Compares
Procedure volume compared to the New Jersey state average.
Volume Trend Analysis
Dr. Cahill's Medicare-recorded procedure volume has trended upward over 12 years, increasing 63% from 75 procedures in 2013 to 122 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Cahill
How does Dr. Cahill's procedure volume compare to other New Jersey surgeons?
Dr. Cahill has performed 122 Medicare-verified joint replacement procedures. This is significantly above the New Jersey average of 72 procedures per surgeon. Dr. Cahill ranks #34 out of 184 orthopedic surgeons in New Jersey.
What types of joint replacement does Dr. Cahill perform?
Dr. Cahill's Medicare data shows procedures in knee replacement (85 cases) and hip replacement (37 cases).
Are there other orthopedic surgeons near Dr. Cahill in Hackensack?
Yes. There are 8 orthopedic surgeons in Hackensack 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 New Jersey surgeons.
What does the Medicare data for Dr. Cahill 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. Cahill's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 122 procedures shown here.
Has Dr. Cahill's procedure volume changed over time?
Yes. Dr. Cahill's Medicare-recorded volume has increased from 75 procedures in 2013 to 122 in the most recent data, a 63% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 122 procedures in 2024.
Does Dr. Cahill perform more than one type of joint replacement?
Yes. Dr. Cahill's Medicare data shows procedures in knee replacement (85 cases), hip replacement (37 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Cahill affiliated with?
According to CMS facility affiliation data, Dr. Cahill is affiliated with Hackensack University Medical Center, St Joseph'S University Medical Center Inc.
How does Dr. Cahill compare to other orthopedic surgeons in Hackensack?
Among the 8 orthopedic surgeons in Hackensack, Dr. Cahill ranks #2 by total Medicare procedure volume. Dr. Cahill is among the highest-volume surgeons in Hackensack.
What are the quality ratings for hospitals where Dr. Cahill practices?
Hackensack University Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); St Joseph'S University Medical Center Inc (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 Hackensack, New Jersey
Dr. Cahill's 122 Medicare procedures are above the Hackensack average of 75. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hackensack.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Thomas John | 136 | Hip, Knee |
| Dr. Yair Kissin | 74 | Knee |
| Dr. Francis Alberta | 66 | Shoulder |
| Dr. Sivaram Rajan | 49 | Hip, Knee, Shoulder |
| Dr. Stephen Rossman | 39 | Hip, Knee |
| Dr. Luis Grau | 37 | 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.