Dr. Darwin Chen, MD
Dr. Darwin Chen is a board-certified orthopedic surgeon practicing in New York, New York. A Medicare provider since 2008, Dr. Chen has performed 85 Medicare-verified knee replacements (#44 in New York) and 60 hip replacements, for a combined total of 145 procedures.
In New York, Dr. Chen performs above average in knee (85 vs 45 avg), above average in hip (60 vs 42 avg).
Dr. Chen's reported Medicare volume is split between knee replacements (85 cases) and hip replacements (60 cases).
New York is home to 84 orthopedic surgeons in the current Medicare dataset. Patients in the New York area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Chen extend back to 2014, covering 10 years of data. Over that period, recorded procedure volume increased from 31 to 145 in the most recent data, a 368% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Chen's 85 verified procedures is above 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. Chen Compares
Procedure volume compared to the New York state average.
Contact & Location
New York, NY 10029
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Chen's Medicare-recorded procedure volume has trended upward over 10 years, increasing 368% from 31 procedures in 2014 to 145 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.
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.
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. Chen
How does Dr. Chen's procedure volume compare to other New York surgeons?
Dr. Chen has performed 145 Medicare-verified joint replacement procedures. This is more than 2x the New York average of 67 procedures per surgeon. Dr. Chen ranks #42 out of 338 orthopedic surgeons in New York.
What types of joint replacement does Dr. Chen perform?
Dr. Chen's Medicare data shows procedures in knee replacement (85 cases) and hip replacement (60 cases).
Are there other orthopedic surgeons near Dr. Chen in New York?
Yes. There are 84 orthopedic surgeons in New York 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 York surgeons.
What does the Medicare data for Dr. Chen 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. Chen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 145 procedures shown here.
Has Dr. Chen's procedure volume changed over time?
Yes. Dr. Chen's Medicare-recorded volume has increased from 31 procedures in 2014 to 145 in the most recent data, a 368% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 145 procedures in 2023.
Does Dr. Chen perform more than one type of joint replacement?
Yes. Dr. Chen's Medicare data shows procedures in knee replacement (85 cases), hip replacement (60 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Chen affiliated with?
According to CMS facility affiliation data, Dr. Chen is affiliated with Mount Sinai Hospital, Mount Sinai South Nassau.
How does Dr. Chen compare to other orthopedic surgeons in New York?
Among the 84 orthopedic surgeons in New York, Dr. Chen ranks #16 by total Medicare procedure volume. The highest-volume surgeon in New York has 320 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Chen practices?
Mount Sinai Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Mount Sinai South Nassau (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 New York, New York
Dr. Chen's 145 Medicare procedures are below the New York average of 238. The table below compares verified procedure volumes for orthopedic surgeons practicing in New York.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Amar Ranawat | 320 | Hip, Knee |
| Dr. Brian Chalmers | 255 | Hip, Knee |
| Dr. Jason Blevins | 239 | Hip, Knee |
| Dr. Alexander McLawhorn | 238 | Hip, Knee |
| Dr. Alberto Carli | 235 | Hip, Knee |
| Dr. Matthew Austin | 231 | Hip, Knee |
Patient Reviews & Ratings
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