Dr. Sam Sydney, M.D.
Dr. Sam Sydney is a board-certified orthopedic surgeon practicing in Catonsville, Maryland. A Medicare provider since 2005, Dr. Sydney has completed 100 knee replacements (#18 in Maryland), 61 hip replacements, and 12 shoulder replacements, totaling 173 Medicare-verified procedures.
In Maryland, Dr. Sydney performs well above average in knee (100 vs 50 avg), above average in hip (61 vs 40 avg), below average in shoulder (12 vs 36 avg).
Dr. Sydney performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (100 cases), followed by hip replacements (61) and shoulder replacements (12).
Catonsville is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Catonsville area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Sydney extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 139 to 173 in the most recent data, a 24% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Sydney's 100 verified procedures is more than 2x the national average of 45.
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. Sydney Compares
Procedure volume compared to the Maryland state average.
Contact & Location
Catonsville, MD 21228
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Sydney's Medicare-recorded procedure volume has trended upward over 11 years, increasing 24% from 139 procedures in 2013 to 173 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.
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. Sydney
How does Dr. Sydney's procedure volume compare to other Maryland surgeons?
Dr. Sydney has performed 173 Medicare-verified joint replacement procedures. This is more than 2x the Maryland average of 72 procedures per surgeon. Dr. Sydney ranks #15 out of 161 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Sydney perform?
Dr. Sydney performs all three major joint replacement procedures: knee replacement (100 cases), hip replacement (61 cases), shoulder replacement (12 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
How experienced is Dr. Sydney with knee replacement surgery?
Dr. Sydney ranks #18 in Maryland for knee replacement with 100 Medicare-verified procedures. This high ranking among 161 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Sydney in Catonsville?
Yes. There are 6 orthopedic surgeons in Catonsville 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 Maryland surgeons.
What does the Medicare data for Dr. Sydney 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. Sydney's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 173 procedures shown here.
Has Dr. Sydney's procedure volume changed over time?
Yes. Dr. Sydney's Medicare-recorded volume has increased from 139 procedures in 2013 to 173 in the most recent data, a 24% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 173 procedures in 2023.
Does Dr. Sydney perform more than one type of joint replacement?
Yes. Dr. Sydney's Medicare data shows procedures in knee replacement (100 cases), hip replacement (61 cases), shoulder replacement (12 cases). Performing all three major joint replacements places Dr. Sydney among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Sydney affiliated with?
According to CMS facility affiliation data, Dr. Sydney is affiliated with Saint Agnes Hospital.
How does Dr. Sydney compare to other orthopedic surgeons in Catonsville?
Among the 6 orthopedic surgeons in Catonsville, Dr. Sydney ranks #1 by total Medicare procedure volume. Dr. Sydney has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Sydney practices?
Saint Agnes 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 Catonsville, Maryland
Dr. Sydney's 173 Medicare procedures are above the Catonsville average of 91. The table below compares verified procedure volumes for orthopedic surgeons practicing in Catonsville.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Ke Xie | 134 | Hip, Knee |
| Dr. Scott Silverstein | 122 | Hip, Knee |
| Dr. Morris Polsky | 62 | Hip, Knee |
| Dr. Michael Wallace | 36 | Knee |
| Dr. Scott Adams | 21 | Knee |
Patient Reviews & Ratings
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