Dr. Afamefuna Nduaguba, MD
Contact & Location
202-877-6000
Washington, DC 20010
New Haven, CT 06519
About Dr. Nduaguba
Dr. Afamefuna Nduaguba is a board-certified orthopedic surgeon practicing in Washington, District of Columbia. A Medicare provider since 2015, Dr. Nduaguba performed 37 Medicare-verified knee replacements (#6 in District of Columbia) and 31 hip replacements in the latest annual CMS data, for a combined total of 68 procedures.
In District of Columbia, Dr. Nduaguba performs near the state average in knee (37 vs 33), near the state average in hip (31 vs 38).
Dr. Nduaguba's reported Medicare volume is split between knee replacements (37 cases) and hip replacements (31 cases).
Washington is home to 16 orthopedic surgeons in the current Medicare dataset. Patients in the Washington area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Nduaguba extend back to 2022, covering 3 years of data. Over that period, recorded procedure volume increased from 41 to 68 in the most recent data, a 66% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Nduaguba's 37 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 23 | 18 |
| 2023 | 42 | 36 |
| 2024 | 31 | 37 |
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, 25% to 33% for hip 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. Nduaguba Compares
Procedure volume compared to the District of Columbia state average.
See the Top 25 knee replacement surgeons in District of Columbia
Volume Trend Analysis
Dr. Nduaguba's Medicare-recorded procedure volume has trended upward over 3 years, increasing 66% from 41 procedures in 2022 to 68 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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Nduaguba
How does Dr. Nduaguba's procedure volume compare to other District of Columbia surgeons?
Dr. Nduaguba has performed 68 Medicare-verified joint replacement procedures. This is in line with the District of Columbia average of 58 procedures per surgeon. Dr. Nduaguba ranks #5 out of 16 orthopedic surgeons in District of Columbia.
What types of joint replacement does Dr. Nduaguba perform?
Dr. Nduaguba's Medicare data shows procedures in knee replacement (37 cases) and hip replacement (31 cases).
How experienced is Dr. Nduaguba with knee replacement surgery?
Dr. Nduaguba ranks #6 in District of Columbia for knee replacement with 37 Medicare-verified procedures. This high ranking among 16 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Nduaguba in Washington?
Yes. There are 16 orthopedic surgeons in Washington 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 District of Columbia surgeons.
What does the Medicare data for Dr. Nduaguba 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, 25% to 33% for hip replacement, which puts Dr. Nduaguba's total volume across all insurers at roughly 230 to 280 procedures against the 68 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. Nduaguba's procedure volume changed over time?
Yes. Dr. Nduaguba's Medicare-recorded volume has increased from 41 procedures in 2022 to 68 in the most recent data, a 66% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 78 procedures in 2023.
Does Dr. Nduaguba perform more than one type of joint replacement?
Yes. Dr. Nduaguba's Medicare data shows procedures in knee replacement (37 cases), hip replacement (31 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Nduaguba affiliated with?
According to CMS facility affiliation data, Dr. Nduaguba is affiliated with Medstar Washington Hospital Center.
How does Dr. Nduaguba compare to other orthopedic surgeons in Washington?
Among the 16 orthopedic surgeons in Washington, Dr. Nduaguba ranks #5 by total Medicare procedure volume. The highest-volume surgeon in Washington has 126 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Nduaguba practices?
Medstar Washington Hospital 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.
Other Orthopedic Surgeons in Washington, District of Columbia
Dr. Nduaguba's 68 Medicare procedures are below the Washington average of 89. The table below compares verified procedure volumes for orthopedic surgeons practicing in Washington.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Savyasachi Thakkar | 126 | Hip, Knee |
| Dr. Anthony Unger | 123 | Hip, Knee |
| Dr. Kenneth Vaz | 92 | Hip, Knee |
| Dr. Matthew Harb | 83 | Hip, Knee |
| Dr. Ahamefula Onyike | 66 | Hip, Knee |
| Dr. Kevin Park | 64 | 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.