Knee
Dr. Timothy Ackerman, D.O.
Dr. Timothy Ackerman is a board-certified orthopedic surgeon practicing in Harrisburg, Pennsylvania. Dr. Ackerman has performed 18 Medicare-verified knee replacements, ranking #250 in Pennsylvania.
In Pennsylvania, Dr. Ackerman performs below average in knee (18 vs 45 avg).
Dr. Ackerman's Medicare data shows a focused knee replacement practice with 18 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.
Harrisburg is home to 7 orthopedic surgeons in the current Medicare dataset. Patients in the Harrisburg area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Ackerman's Medicare record spans 6 years from 2018 through 2023. Procedure volume has remained consistent during that period, ranging from 15 to 22 procedures per year, reflecting a steady joint replacement practice.
Dr. Ackerman's 18 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Ackerman Compares
Procedure volume compared to the Pennsylvania state average.
Contact & Location
Harrisburg, PA 17109
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Ackerman's procedure volume has been consistent across 6 years of Medicare data, ranging from 15 to 22 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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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. Ackerman
How does Dr. Ackerman's procedure volume compare to other Pennsylvania surgeons?
Dr. Ackerman has performed 18 Medicare-verified joint replacement procedures. The Pennsylvania average is 63 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Ackerman ranks #320 out of 388 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Ackerman perform?
Dr. Ackerman's reported Medicare volume is focused on knee replacement, with 18 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Ackerman in Harrisburg?
Yes. There are 7 orthopedic surgeons in Harrisburg 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 Pennsylvania surgeons.
What does the Medicare data for Dr. Ackerman 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. Ackerman's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 18 procedures shown here.
Has Dr. Ackerman's procedure volume changed over time?
Dr. Ackerman's procedure volume has been relatively stable over 6 years of Medicare data, ranging from 15 to 22 procedures per year between 2018 and 2023. Consistent volume over multiple years reflects a steady joint replacement practice.
Which hospitals is Dr. Ackerman affiliated with?
According to CMS facility affiliation data, Dr. Ackerman is affiliated with Upmc Pinnacle Hospitals.
How does Dr. Ackerman compare to other orthopedic surgeons in Harrisburg?
Among the 7 orthopedic surgeons in Harrisburg, Dr. Ackerman ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Harrisburg has 124 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Ackerman practices?
Upmc Pinnacle Hospitals (4 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 Harrisburg, Pennsylvania
Dr. Ackerman's 18 Medicare procedures are below the Harrisburg average of 58. The table below compares verified procedure volumes for orthopedic surgeons practicing in Harrisburg.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Alex Shin | 124 | Hip, Knee |
| Dr. Scott King | 105 | Hip, Knee |
| Dr. Matthew Espenshade | 81 | Hip, Knee, Shoulder |
| Dr. Eric Kutz | 38 | Hip, Knee |
| Dr. John Grandrimo | 30 | Knee |
| Dr. Lisa O'brien | 13 | Shoulder |
Patient Reviews & Ratings
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