Dr. Derek Johnson, M.D.
Contact & Location
303-925-4750
Parker, CO 80134
About Dr. Johnson
Dr. Derek Johnson is a board-certified orthopedic surgeon practicing in Parker, Colorado. A Medicare provider since 2007, Dr. Johnson performed 76 Medicare-verified knee replacements (#15 in Colorado) and 47 hip replacements in the latest annual CMS data, for a combined total of 123 procedures.
In Colorado, Dr. Johnson performs above the state average in knee (76 vs 48), above the state average in hip (47 vs 38).
Dr. Johnson's reported Medicare volume is split between knee replacements (76 cases) and hip replacements (47 cases).
Parker is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Parker area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Johnson extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 91 to 123 in the most recent data, a 35% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Johnson's 76 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 30 | 61 |
| 2014 | 34 | 70 |
| 2015 | 35 | 86 |
| 2016 | 40 | 91 |
| 2017 | 36 | 96 |
| 2018 | 52 | 113 |
| 2019 | 41 | 114 |
| 2020 | 39 | 86 |
| 2021 | 40 | 112 |
| 2022 | 49 | 115 |
| 2023 | 46 | 101 |
| 2024 | 47 | 76 |
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. Johnson Compares
Procedure volume compared to the Colorado state average.
Volume Trend Analysis
Dr. Johnson's Medicare-recorded procedure volume has trended upward over 12 years, increasing 35% from 91 procedures in 2013 to 123 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Johnson
How does Dr. Johnson's procedure volume compare to other Colorado surgeons?
Dr. Johnson has performed 123 Medicare-verified joint replacement procedures. This is significantly above the Colorado average of 64 procedures per surgeon. Dr. Johnson ranks #18 out of 169 orthopedic surgeons in Colorado.
What types of joint replacement does Dr. Johnson perform?
Dr. Johnson's Medicare data shows procedures in knee replacement (76 cases) and hip replacement (47 cases).
How experienced is Dr. Johnson with knee replacement surgery?
Dr. Johnson ranks #15 in Colorado for knee replacement with 76 Medicare-verified procedures. This high ranking among 169 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Johnson in Parker?
Yes. There are 3 orthopedic surgeons in Parker 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 Colorado surgeons.
What does the Medicare data for Dr. Johnson 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. Johnson's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 123 procedures shown here.
Has Dr. Johnson's procedure volume changed over time?
Yes. Dr. Johnson's Medicare-recorded volume has increased from 91 procedures in 2013 to 123 in the most recent data, a 35% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 165 procedures in 2018.
Does Dr. Johnson perform more than one type of joint replacement?
Yes. Dr. Johnson's Medicare data shows procedures in knee replacement (76 cases), hip replacement (47 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Johnson affiliated with?
According to CMS facility affiliation data, Dr. Johnson is affiliated with Adventhealth Parker.
How does Dr. Johnson compare to other orthopedic surgeons in Parker?
Among the 3 orthopedic surgeons in Parker, Dr. Johnson ranks #1 by total Medicare procedure volume. Dr. Johnson has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Johnson practices?
Adventhealth Parker (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 Parker, Colorado
Dr. Johnson's 123 Medicare procedures are above the Parker average of 52. The table below compares verified procedure volumes for orthopedic surgeons practicing in Parker.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Landon Fine | 18 | Shoulder |
| Dr. Scott Resig | 14 | 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.