Dr. Kent Marangi, M.D.
Contact & Location
949-348-4000
Mission Viejo, CA 92691
Dr. Marangi performs more knee replacement procedures than 30% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #342 of 491 ranked knee surgeons in California.
About Dr. Marangi
Practice. Dr. Kent Marangi is a board-certified orthopedic surgeon practicing in Mission Viejo, California. The latest annual CMS data records 21 knee replacements. That is #342 in California for knee replacement. Dr. Marangi also holds credentials in Sports Medicine. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 10 years. Volume rose from 15 procedures a year to 21, up 40%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 21 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Mission Viejo has 5 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 15 |
| 2014 | 14 |
| 2015 | 0 |
| 2016 | 12 |
| 2017 | 13 |
| 2018 | 20 |
| 2019 | 31 |
| 2020 | 0 |
| 2021 | 14 |
| 2022 | 16 |
| 2023 | 22 |
| 2024 | 21 |
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. Marangi Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Marangi's Medicare-recorded procedure volume has trended upward over 10 years, increasing 40% from 15 procedures in 2013 to 21 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. Marangi
How does Dr. Marangi's procedure volume compare to other California surgeons?
Dr. Marangi has performed 21 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Marangi ranks #464 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Marangi perform?
Dr. Marangi's reported Medicare volume is focused on knee replacement, with 21 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Marangi in Mission Viejo?
Yes. There are 5 orthopedic surgeons in Mission Viejo 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 California surgeons.
What does the Medicare data for Dr. Marangi 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. Marangi's total volume across all insurers at roughly 80 to 90 procedures against the 21 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. Marangi's procedure volume changed over time?
Yes. Dr. Marangi's Medicare-recorded volume has increased from 15 procedures in 2013 to 21 in the most recent data, a 40% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 31 procedures in 2019.
Which hospitals is Dr. Marangi affiliated with?
According to CMS facility affiliation data, Dr. Marangi is affiliated with Providence Mission Hospital.
How does Dr. Marangi compare to other orthopedic surgeons in Mission Viejo?
Among the 5 orthopedic surgeons in Mission Viejo, Dr. Marangi ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Mission Viejo has 211 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Marangi practices?
Providence Mission Hospital (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 Mission Viejo, California
Dr. Marangi's 21 Medicare procedures are below the Mission Viejo average of 96. The table below compares verified procedure volumes for orthopedic surgeons practicing in Mission Viejo.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Samuel Park | 211 | Hip, Knee |
| Dr. James Chen | 110 | Hip, Knee |
| Dr. Michael Marandola | 77 | Hip, Knee |
| Dr. Stephen Gardner | 61 | Hip, Knee, Shoulder |
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.