Dr. Michael Muldoon, M.D.
Contact & Location
858-278-8300
San Diego, CA 92111
About Dr. Muldoon
Dr. Michael Muldoon is a board-certified orthopedic surgeon practicing in San Diego, California. A Medicare provider since 2006, Dr. Muldoon performed 18 Medicare-verified knee replacements (#370 in California) and 17 hip replacements in the latest annual CMS data, for a combined total of 35 procedures.
In California, Dr. Muldoon performs below the state average in knee (18 vs 47), below the state average in hip (17 vs 41).
Dr. Muldoon's reported Medicare volume is split between knee replacements (18 cases) and hip replacements (17 cases).
Beyond general orthopedic surgery, Dr. Muldoon holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
San Diego is home to 31 orthopedic surgeons in the current Medicare dataset. Patients in the San Diego area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Muldoon's Medicare record spans 12 years from 2013 through 2024. Procedure volume has remained consistent during that period, ranging from 27 to 50 procedures per year, reflecting a steady joint replacement practice.
Dr. Muldoon's 18 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 27 | 13 |
| 2014 | 36 | 0 |
| 2015 | 27 | 0 |
| 2016 | 25 | 25 |
| 2017 | 21 | 17 |
| 2018 | 22 | 13 |
| 2019 | 23 | 19 |
| 2020 | 21 | 21 |
| 2021 | 30 | 17 |
| 2022 | 23 | 20 |
| 2023 | 22 | 14 |
| 2024 | 17 | 18 |
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. Muldoon Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Muldoon's procedure volume has been consistent across 12 years of Medicare data, ranging from 27 to 50 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.
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. Muldoon
How does Dr. Muldoon's procedure volume compare to other California surgeons?
Dr. Muldoon has performed 35 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. Muldoon ranks #359 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Muldoon perform?
Dr. Muldoon's Medicare data shows procedures in knee replacement (18 cases) and hip replacement (17 cases).
Are there other orthopedic surgeons near Dr. Muldoon in San Diego?
Yes. There are 31 orthopedic surgeons in San Diego 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. Muldoon 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. Muldoon's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 35 procedures shown here.
Has Dr. Muldoon's procedure volume changed over time?
Dr. Muldoon's procedure volume has been relatively stable over 12 years of Medicare data, ranging from 27 to 50 procedures per year between 2013 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. Muldoon perform more than one type of joint replacement?
Yes. Dr. Muldoon's Medicare data shows procedures in knee replacement (18 cases), hip replacement (17 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Muldoon affiliated with?
According to CMS facility affiliation data, Dr. Muldoon is affiliated with Sharp Memorial Hospital, Sharp Coronado Hospital And Hlthcr Ctr.
How does Dr. Muldoon compare to other orthopedic surgeons in San Diego?
Among the 31 orthopedic surgeons in San Diego, Dr. Muldoon ranks #18 by total Medicare procedure volume. The highest-volume surgeon in San Diego has 253 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Muldoon practices?
Sharp Memorial Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Sharp Coronado Hospital And Hlthcr Ctr (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.
Other Orthopedic Surgeons in San Diego, California
Dr. Muldoon's 35 Medicare procedures are below the San Diego average of 115. The table below compares verified procedure volumes for orthopedic surgeons practicing in San Diego.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Scott Ball | 253 | Hip, Knee |
| Dr. Francis Gonzales | 155 | Hip, Knee |
| Dr. Ameer Elbuluk | 97 | Hip, Knee |
| Dr. Thomas Nguyen | 93 | Knee |
| Dr. Daljeet Sagoo | 88 | Hip, Knee |
| Dr. David Fabi | 87 | Hip, 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.