Dr. Bruce Knolmayer, M.D.
Contact & Location
301-977-6777
Montgomry Village, MD 20886
About Dr. Knolmayer
Dr. Bruce Knolmayer is a board-certified orthopedic surgeon practicing in Montgomry Village, Maryland. A Medicare provider since 2005, Dr. Knolmayer performed 48 Medicare-verified knee replacements (#49 in Maryland) and 13 hip replacements in the latest annual CMS data, for a combined total of 61 procedures.
In Maryland, Dr. Knolmayer performs near the state average in knee (48 vs 49), below the state average in hip (13 vs 42).
Dr. Knolmayer's practice is heavily focused on knee replacement surgery, which accounts for 79% of reported Medicare volume.
Dr. Knolmayer is the only orthopedic surgeon in Montgomry Village 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. Knolmayer extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 23 to 61 in the most recent data, a 165% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Knolmayer's 48 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 0 | 23 | 0 |
| 2014 | 0 | 16 | 0 |
| 2015 | 11 | 19 | 0 |
| 2016 | 18 | 21 | 0 |
| 2017 | 0 | 24 | 0 |
| 2018 | 0 | 30 | 0 |
| 2019 | 0 | 27 | 11 |
| 2020 | 11 | 20 | 0 |
| 2021 | 16 | 33 | 0 |
| 2022 | 0 | 37 | 0 |
| 2023 | 18 | 38 | 0 |
| 2024 | 13 | 48 | 0 |
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. Knolmayer Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. Knolmayer's Medicare-recorded procedure volume has trended upward over 12 years, increasing 165% from 23 procedures in 2013 to 61 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. Knolmayer
How does Dr. Knolmayer's procedure volume compare to other Maryland surgeons?
Dr. Knolmayer has performed 61 Medicare-verified joint replacement procedures. This is in line with the Maryland average of 71 procedures per surgeon. Dr. Knolmayer ranks #69 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Knolmayer perform?
Dr. Knolmayer's Medicare data shows procedures in knee replacement (48 cases) and hip replacement (13 cases).
Where is Dr. Knolmayer's practice located?
Dr. Knolmayer practices in Montgomry Village, Maryland. The office is located at 19231 Montgomery Village Ave, Montgomry Village, MD 20886. Patients in the surrounding area can consult Dr. Knolmayer for joint replacement evaluation.
What does the Medicare data for Dr. Knolmayer 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. Knolmayer's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 61 procedures shown here.
Has Dr. Knolmayer's procedure volume changed over time?
Yes. Dr. Knolmayer's Medicare-recorded volume has increased from 23 procedures in 2013 to 61 in the most recent data, a 165% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 61 procedures in 2024.
Does Dr. Knolmayer perform more than one type of joint replacement?
Yes. Dr. Knolmayer's Medicare data shows procedures in knee replacement (48 cases), hip replacement (13 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Knolmayer affiliated with?
According to CMS facility affiliation data, Dr. Knolmayer is affiliated with Medstar Montgomery Medical Center.
What are the quality ratings for hospitals where Dr. Knolmayer practices?
Medstar Montgomery Medical Center (3 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.