Dr. Jon Koman, MD
Contact & Location
410-833-9300
Reisterstown, MD 21136
Dr. Koman performs more knee replacement procedures than 57% of orthopedic surgeons in Maryland, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #58 of 138 ranked knee surgeons in Maryland.
About Dr. Koman
Dr. Jon Koman is a board-certified orthopedic surgeon practicing in Reisterstown, Maryland. A Medicare provider since 2005, Dr. Koman performed 42 Medicare-verified knee replacements in the latest annual CMS data, ranking #58 in Maryland.
In Maryland, Dr. Koman performs near the state average in knee (42 vs 49).
Dr. Koman's Medicare data shows a focused knee replacement practice with 42 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.
Dr. Koman is the only orthopedic surgeon in Reisterstown represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Medicare records for Dr. Koman extend back to 2014, covering 11 years of data. Over that period, recorded procedure volume increased from 15 to 42 in the most recent data, a 180% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Koman's 42 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 15 | 0 |
| 2015 | 25 | 0 |
| 2016 | 39 | 0 |
| 2017 | 28 | 0 |
| 2018 | 44 | 0 |
| 2019 | 51 | 0 |
| 2020 | 27 | 0 |
| 2021 | 46 | 11 |
| 2022 | 58 | 0 |
| 2023 | 60 | 0 |
| 2024 | 42 | 0 |
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. 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. Koman Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. Koman's Medicare-recorded procedure volume has trended upward over 11 years, increasing 180% from 15 procedures in 2014 to 42 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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Koman
How does Dr. Koman's procedure volume compare to other Maryland surgeons?
Dr. Koman has performed 42 Medicare-verified joint replacement procedures. The Maryland average is 71 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Koman ranks #92 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Koman perform?
Dr. Koman's reported Medicare volume is focused on knee replacement, with 42 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Koman's practice located?
Dr. Koman practices in Reisterstown, Maryland. The office is located at 116 Westminster Pike, Reisterstown, MD 21136. Patients in the surrounding area can consult Dr. Koman for joint replacement evaluation.
What does the Medicare data for Dr. Koman 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, which puts Dr. Koman's total volume across all insurers at roughly 150 to 180 procedures against the 42 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. Koman's procedure volume changed over time?
Yes. Dr. Koman's Medicare-recorded volume has increased from 15 procedures in 2014 to 42 in the most recent data, a 180% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 60 procedures in 2023.
Which hospitals is Dr. Koman affiliated with?
According to CMS facility affiliation data, Dr. Koman is affiliated with Medstar Union Memorial Hospital.
What are the quality ratings for hospitals where Dr. Koman practices?
Medstar Union Memorial Hospital (5 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.
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.