Dr. Adam Harder, MD
Dr. Adam Harder is a board-certified orthopedic surgeon practicing in Andover, Massachusetts. A Medicare provider since 2007, Dr. Harder has performed 39 Medicare-verified hip replacements (#55 in Massachusetts) and 25 knee replacements, for a combined total of 64 procedures.
In Massachusetts, Dr. Harder performs near average in hip (39 vs 44 avg), below average in knee (25 vs 51 avg).
Dr. Harder's reported Medicare volume is split between hip replacements (39 cases) and knee replacements (25 cases).
Andover is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Andover area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Harder also maintains hospital privileges in MA and NH, indicating a regional practice that extends beyond Massachusetts.
Medicare records for Dr. Harder extend back to 2014, covering 10 years of data. Over that period, recorded procedure volume increased from 14 to 64 in the most recent data, a 357% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,526 hip replacement surgeons tracked nationally, Dr. Harder's 39 verified procedures is near the national average of 36.
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. Harder Compares
Procedure volume compared to the Massachusetts state average.
Contact & Location
Andover, MA 01810
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Harder's Medicare-recorded procedure volume has trended upward over 10 years, increasing 357% from 14 procedures in 2014 to 64 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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Harder
How does Dr. Harder's procedure volume compare to other Massachusetts surgeons?
Dr. Harder has performed 64 Medicare-verified joint replacement procedures. This is in line with the Massachusetts average of 74 procedures per surgeon. Dr. Harder ranks #88 out of 202 orthopedic surgeons in Massachusetts.
What types of joint replacement does Dr. Harder perform?
Dr. Harder's Medicare data shows procedures in hip replacement (39 cases) and knee replacement (25 cases).
Are there other orthopedic surgeons near Dr. Harder in Andover?
Yes. There are 2 orthopedic surgeons in Andover 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. Harder 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. Harder's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 64 procedures shown here.
Has Dr. Harder's procedure volume changed over time?
Yes. Dr. Harder's Medicare-recorded volume has increased from 14 procedures in 2014 to 64 in the most recent data, a 357% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 64 procedures in 2023.
Does Dr. Harder perform more than one type of joint replacement?
Yes. Dr. Harder's Medicare data shows procedures in hip replacement (39 cases), knee replacement (25 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Harder affiliated with?
According to CMS facility affiliation data, Dr. Harder is affiliated with Merrimack Health Lawrence Hospital, Merrimack Health Methuen Hospital, Parkland Medical Center. Dr. Harder maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Harder practices?
Merrimack Health Lawrence Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Merrimack Health Methuen Hospital (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Parkland Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Andover, Massachusetts
Dr. Harder's 64 Medicare procedures are above the Andover average of 56. The table below compares verified procedure volumes for orthopedic surgeons practicing in Andover.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Steven Andriola | 48 | Knee |
Patient Reviews & Ratings
OrthoProcedures.com focuses on verified Medicare procedure data. For patient reviews, ratings, and appointment scheduling, visit these trusted platforms:
These links lead to third-party websites. OrthoProcedures.com is not affiliated with these platforms and cannot verify the accuracy of reviews.