Dr. Michael Deehan, M.D.
Contact & Location
908-813-9700
Hackettstown, NJ 07840
Bedminster, NJ 07921
Dr. Deehan performs more knee replacement procedures than 19% of orthopedic surgeons in New Jersey, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #113 of 140 ranked knee surgeons in New Jersey.
About Dr. Deehan
Practice. Dr. Michael Deehan is a board-certified orthopedic surgeon practicing in Hackettstown, New Jersey. The latest annual CMS data records 16 knee replacements. That is #113 in New Jersey for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 11 years. Volume peaked at 28 in 2013 and stands at 16 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 16 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Hackettstown has 5 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 | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 13 | 15 |
| 2014 | 12 | 0 |
| 2015 | 12 | 13 |
| 2016 | 0 | 21 |
| 2017 | 0 | 0 |
| 2018 | 0 | 13 |
| 2019 | 0 | 15 |
| 2020 | 0 | 14 |
| 2021 | 0 | 16 |
| 2022 | 0 | 12 |
| 2023 | 0 | 13 |
| 2024 | 0 | 16 |
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. Deehan Compares
Procedure volume compared to the New Jersey state average.
Volume Trend Analysis
Dr. Deehan's recorded volume peaked at 28 procedures in 2013 and stood at 16 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. Deehan
How does Dr. Deehan's procedure volume compare to other New Jersey surgeons?
Dr. Deehan has performed 16 Medicare-verified joint replacement procedures. The New Jersey average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Deehan ranks #151 out of 184 orthopedic surgeons in New Jersey.
What types of joint replacement does Dr. Deehan perform?
Dr. Deehan's reported Medicare volume is focused on knee replacement, with 16 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Deehan in Hackettstown?
Yes. There are 5 orthopedic surgeons in Hackettstown 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. Deehan 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. Deehan's total volume across all insurers at roughly 60 to 70 procedures against the 16 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. Deehan's procedure volume changed over time?
Dr. Deehan's Medicare-recorded volume peaked at 28 procedures in 2013 and was 16 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. Deehan affiliated with?
According to CMS facility affiliation data, Dr. Deehan is affiliated with St Luke'S Warren Hospital, Hackettstown Medical Center, Morristown Medical Center, Newton Medical Center.
How does Dr. Deehan compare to other orthopedic surgeons in Hackettstown?
Among the 5 orthopedic surgeons in Hackettstown, Dr. Deehan ranks #3 by total Medicare procedure volume. Dr. Deehan is among the highest-volume surgeons in Hackettstown.
What are the quality ratings for hospitals where Dr. Deehan practices?
St Luke'S Warren Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Hackettstown Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Morristown Medical Center (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 Hackettstown, New Jersey
Dr. Deehan's 16 Medicare procedures are below the Hackettstown average of 77. The table below compares verified procedure volumes for orthopedic surgeons practicing in Hackettstown.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Dundon | 324 | Hip, Knee |
| Dr. Robert Masella | 17 | Knee |
| Dr. Stephen Koss | 15 | Shoulder |
| Dr. Glen Wainen | 12 | 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.