Dr. Alan Dayan, M.D.
Contact & Location
718-232-6348
Brooklyn, NY 11229
Dr. Dayan performs more knee replacement procedures than 32% of orthopedic surgeons in New York, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #182 of 269 ranked knee surgeons in New York.
About Dr. Dayan
Practice. Dr. Alan Dayan is a board-certified orthopedic surgeon practicing in Brooklyn, New York. The latest annual CMS data records 22 knee replacements and 15 hip replacements, 37 procedures in all. That is #182 in New York for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2015 to 2024, 10 years. Volume rose from 17 procedures a year to 37, up 118%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 22 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Brooklyn has 8 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 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 17 |
| 2016 | 0 | 26 |
| 2017 | 0 | 18 |
| 2018 | 0 | 22 |
| 2019 | 16 | 18 |
| 2020 | 0 | 18 |
| 2021 | 12 | 27 |
| 2022 | 14 | 16 |
| 2023 | 16 | 32 |
| 2024 | 15 | 22 |
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, 25% to 33% for hip 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. Dayan Compares
Procedure volume compared to the New York state average.
Volume Trend Analysis
Dr. Dayan's Medicare-recorded procedure volume has trended upward over 10 years, increasing 118% from 17 procedures in 2015 to 37 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. Dayan
How does Dr. Dayan's procedure volume compare to other New York surgeons?
Dr. Dayan has performed 37 Medicare-verified joint replacement procedures. The New York average is 69 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Dayan ranks #204 out of 334 orthopedic surgeons in New York.
What types of joint replacement does Dr. Dayan perform?
Dr. Dayan's Medicare data shows procedures in knee replacement (22 cases) and hip replacement (15 cases).
Are there other orthopedic surgeons near Dr. Dayan in Brooklyn?
Yes. There are 8 orthopedic surgeons in Brooklyn 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. Dayan 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, 25% to 33% for hip replacement, which puts Dr. Dayan's total volume across all insurers at roughly 120 to 160 procedures against the 37 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. Dayan's procedure volume changed over time?
Yes. Dr. Dayan's Medicare-recorded volume has increased from 17 procedures in 2015 to 37 in the most recent data, a 118% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 48 procedures in 2023.
Does Dr. Dayan perform more than one type of joint replacement?
Yes. Dr. Dayan's Medicare data shows procedures in knee replacement (22 cases), hip replacement (15 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Dayan affiliated with?
According to CMS facility affiliation data, Dr. Dayan is affiliated with Nyu Langone Hospitals.
How does Dr. Dayan compare to other orthopedic surgeons in Brooklyn?
Among the 8 orthopedic surgeons in Brooklyn, Dr. Dayan ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Brooklyn has 105 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Dayan practices?
Nyu Langone Hospitals (5 out of 5 CMS stars, hip/knee complication rate better than national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Brooklyn, New York
Dr. Dayan's 37 Medicare procedures are below the Brooklyn average of 48. The table below compares verified procedure volumes for orthopedic surgeons practicing in Brooklyn.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Nachum Levin | 105 | Hip, Knee |
| Dr. Vladimir Tress | 50 | Hip, Knee |
| Dr. Henry Tischler | 46 | Hip, Knee |
| Dr. Nicholas Yohe | 46 | Hip, Knee |
| Dr. Joseph Feliccia | 35 | Hip, Knee |
| Dr. Orry Erez | 14 | 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.