Dr. Thomas Nguyen, M.D.
Contact & Location
858-278-8031
San Diego, CA 92111
Monterey, CA 93940
Dr. Nguyen performs more knee replacement procedures than 87% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #60 of 491 ranked knee surgeons in California.
About Dr. Nguyen
Practice. Dr. Thomas Nguyen is a board-certified orthopedic surgeon practicing in San Diego, California. The latest annual CMS data records 93 knee replacements. That is #60 in California for knee replacement. A Medicare provider since 2014.
Trend. Dr. Nguyen first appears in the Medicare data in 2023. With 2 years on record, the trend is still short.
National context. Among 6,612 knee replacement surgeons tracked nationally, 93 procedures is more than 2x the national average of 45.
Local context. San Diego has 31 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume
Verified Medicare data is available for 2 years: 97 procedures in 2023 and 93 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. Nguyen Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Nguyen has 2 years of Medicare procedure data beginning in 2023. Additional years of data will provide a clearer picture of volume trends.
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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Nguyen
How does Dr. Nguyen's procedure volume compare to other California surgeons?
Dr. Nguyen has performed 93 Medicare-verified joint replacement procedures. This is in line with the California average of 68 procedures per surgeon. Dr. Nguyen ranks #128 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Nguyen perform?
Dr. Nguyen's reported Medicare volume is focused on knee replacement, with 93 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Nguyen 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. Nguyen 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. Nguyen's total volume across all insurers at roughly 330 to 400 procedures against the 93 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.
Which hospitals is Dr. Nguyen affiliated with?
According to CMS facility affiliation data, Dr. Nguyen is affiliated with Memorialcare Orange Coast Medical Center, Chapman Global Medical Center, Uci Health-Orange.
How does Dr. Nguyen compare to other orthopedic surgeons in San Diego?
Among the 31 orthopedic surgeons in San Diego, Dr. Nguyen ranks #4 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. Nguyen practices?
Memorialcare Orange Coast Medical Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Chapman Global Medical Center (1 out of 5 CMS stars, hip/knee complication rate similar to national average); Uci Health-Orange (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 San Diego, California
Dr. Nguyen's 93 Medicare procedures are below the San Diego average of 121. 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. Daljeet Sagoo | 88 | Hip, Knee |
| Dr. David Fabi | 87 | Hip, Knee |
| Dr. Joseph Jankiewicz | 71 | 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.