Dr. Mark Aierstok, MD
Contact & Location
Poughkeepsie, NY 12601
Dr. Mark Aierstok is a board-certified orthopedic surgeon practicing in Poughkeepsie, New York. Dr. Aierstok has performed 11 Medicare-verified knee replacements, ranking #269 in New York.
In New York, Dr. Aierstok performs below average in knee (11 vs 47 avg).
Dr. Aierstok's Medicare data shows a focused knee replacement practice with 11 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Poughkeepsie is home to 10 orthopedic surgeons in the current Medicare dataset. Patients in the Poughkeepsie area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Aierstok's Medicare record spans 5 years from 2016 through 2024. Procedure volume has remained consistent during that period, ranging from 11 to 15 procedures per year, reflecting a steady joint replacement practice.
Dr. Aierstok's 11 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
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. Aierstok Compares
Procedure volume compared to the New York state average.
Volume Trend Analysis
Dr. Aierstok's procedure volume has been consistent across 5 years of Medicare data, ranging from 11 to 15 procedures per year. This stability suggests a well-established joint replacement practice.
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.
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 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. Aierstok
How does Dr. Aierstok's procedure volume compare to other New York surgeons?
Dr. Aierstok has performed 11 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. Aierstok ranks #332 out of 334 orthopedic surgeons in New York.
What types of joint replacement does Dr. Aierstok perform?
Dr. Aierstok's reported Medicare volume is focused on knee replacement, with 11 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Aierstok in Poughkeepsie?
Yes. There are 10 orthopedic surgeons in Poughkeepsie 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. Aierstok 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. Aierstok's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 11 procedures shown here.
Has Dr. Aierstok's procedure volume changed over time?
Dr. Aierstok's procedure volume has been relatively stable over 5 years of Medicare data, ranging from 11 to 15 procedures per year between 2016 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Which hospitals is Dr. Aierstok affiliated with?
According to CMS facility affiliation data, Dr. Aierstok is affiliated with Northern Dutchess Hospital, Healthalliance Hospital Marys Avenue Campus, Vassar Brothers Medical Center, Margaretville Memorial Hospital.
How does Dr. Aierstok compare to other orthopedic surgeons in Poughkeepsie?
Among the 10 orthopedic surgeons in Poughkeepsie, Dr. Aierstok ranks #10 by total Medicare procedure volume. The highest-volume surgeon in Poughkeepsie has 154 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Aierstok practices?
Northern Dutchess Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Healthalliance Hospital Marys Avenue Campus (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Vassar Brothers Medical Center (3 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 Poughkeepsie, New York
Dr. Aierstok's 11 Medicare procedures are below the Poughkeepsie average of 78. The table below compares verified procedure volumes for orthopedic surgeons practicing in Poughkeepsie.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Russell Tigges | 154 | Hip, Knee |
| Dr. Frank Lombardo | 142 | Hip, Knee |
| Dr. David Stamer | 70 | Hip, Knee |
| Dr. Kenneth Rauschenbach | 62 | Hip, Knee |
| Dr. Landon Brown | 57 | Hip, Knee |
| Dr. Michael Rutter | 49 | 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.