Dr. Daniel Aaron, M.D.
Contact & Location
508-334-6606
Worcester, MA 01605
Dr. Aaron performs more shoulder replacement procedures than 69% of orthopedic surgeons in Massachusetts, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #14 of 46 ranked shoulder surgeons in Massachusetts.
About Dr. Aaron
Practice. Dr. Daniel Aaron is a board-certified orthopedic surgeon practicing in Worcester, Massachusetts. The latest annual CMS data records 39 shoulder replacements. That is #14 in Massachusetts for shoulder replacement. A Medicare provider since 2007.
Trend. Medicare records run from 2016 to 2024, 9 years. Volume rose from 16 procedures a year to 39, up 144%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 39 procedures is above the national average of 29.
Local context. Worcester has 13 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 | Shoulder Replacement |
|---|---|
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 16 |
| 2017 | 33 |
| 2018 | 39 |
| 2019 | 40 |
| 2020 | 28 |
| 2021 | 33 |
| 2022 | 29 |
| 2023 | 53 |
| 2024 | 39 |
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 29% to 37% for shoulder 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. Aaron Compares
Procedure volume compared to the Massachusetts state average.
See the Top 25 shoulder replacement surgeons in Massachusetts
Volume Trend Analysis
Dr. Aaron's Medicare-recorded procedure volume has trended upward over 9 years, increasing 144% from 16 procedures in 2016 to 39 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Aaron
How does Dr. Aaron's procedure volume compare to other Massachusetts surgeons?
Dr. Aaron has performed 39 Medicare-verified joint replacement procedures. The Massachusetts average is 74 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Aaron ranks #125 out of 203 orthopedic surgeons in Massachusetts.
What types of joint replacement does Dr. Aaron perform?
Dr. Aaron's reported Medicare volume is focused on shoulder replacement, with 39 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Aaron with shoulder replacement surgery?
Dr. Aaron ranks #14 in Massachusetts for shoulder replacement with 39 Medicare-verified procedures. This high ranking among 203 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Aaron in Worcester?
Yes. There are 13 orthopedic surgeons in Worcester 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. Aaron 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 29% to 37% for shoulder replacement, which puts Dr. Aaron's total volume across all insurers at roughly 110 to 130 procedures against the 39 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. Aaron's procedure volume changed over time?
Yes. Dr. Aaron's Medicare-recorded volume has increased from 16 procedures in 2016 to 39 in the most recent data, a 144% increase over 9 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 53 procedures in 2023.
Which hospitals is Dr. Aaron affiliated with?
According to CMS facility affiliation data, Dr. Aaron is affiliated with Umass Memorial Medical Center Inc, Umass Memorial Healh - Harrington Hospital, Marlborough Hospital, St Vincent Hospital, Health Alliance - Clinton Hospital.
How does Dr. Aaron compare to other orthopedic surgeons in Worcester?
Among the 13 orthopedic surgeons in Worcester, Dr. Aaron ranks #10 by total Medicare procedure volume. The highest-volume surgeon in Worcester has 127 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Aaron practices?
Umass Memorial Medical Center Inc (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Umass Memorial Healh - Harrington Hospital (2 out of 5 CMS stars, insufficient case volume for complication rate comparison); Marlborough Hospital (2 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 Worcester, Massachusetts
Dr. Aaron's 39 Medicare procedures are below the Worcester average of 83. The table below compares verified procedure volumes for orthopedic surgeons practicing in Worcester.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Christopher Vinton | 127 | Hip, Knee |
| Dr. Nicholas Schraut | 104 | Hip, Knee |
| Dr. Philip Aurigemma | 85 | Hip, Knee |
| Dr. Daniel Mandell | 83 | Hip, Knee |
| Dr. Jeffrey Lange | 78 | Hip, Knee |
| Dr. Steven Disegna | 63 | Hip, 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.