Dr. Ansab Khwaja, M.D., PC
Contact & Location
360-501-3400
Longview, WA 98632
Dr. Khwaja performs more knee replacement procedures than 5% of orthopedic surgeons in Oregon, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #76 of 80 ranked knee surgeons in Oregon.
About Dr. Khwaja
Practice. Dr. Ansab Khwaja is a board-certified orthopedic surgeon practicing in Milwaukie, Oregon. The latest annual CMS data records 12 knee replacements. That is #76 in Oregon for knee replacement. A Medicare provider since 2016.
Trend. Dr. Khwaja first appears in the Medicare data in 2024. With 1 year on record, the trend is still short.
National context. Among 6,612 knee replacement surgeons tracked nationally, 12 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Milwaukie has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Khwaja also holds hospital privileges in WA and OR, a practice that extends beyond Oregon.
Verified Case Volume
Verified Medicare data is available for 1 year: 12 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. Khwaja Compares
Procedure volume compared to the Oregon state average.
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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Khwaja
How does Dr. Khwaja's procedure volume compare to other Oregon surgeons?
Dr. Khwaja has performed 12 Medicare-verified joint replacement procedures. The Oregon average is 63 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Khwaja ranks #98 out of 101 orthopedic surgeons in Oregon.
What types of joint replacement does Dr. Khwaja perform?
Dr. Khwaja's reported Medicare volume is focused on knee replacement, with 12 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Khwaja's practice located?
Dr. Khwaja's current practice address is in Longview, WA. That address is the current practice address in Dr. Khwaja's own CMS NPPES registry entry, which providers maintain themselves. The Medicare claims data used for the rankings on this page was billed from Milwaukie, Oregon.
What does the Medicare data for Dr. Khwaja 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. Khwaja's total volume across all insurers at roughly 40 to 50 procedures against the 12 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. Khwaja affiliated with?
According to CMS facility affiliation data, Dr. Khwaja is affiliated with Peacehealth St John Medical Center, Providence Milwaukie Hospital, Peacehealth Southwest Medical Cente. Dr. Khwaja maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Khwaja compare to other orthopedic surgeons in Milwaukie?
Among the 3 orthopedic surgeons in Milwaukie, Dr. Khwaja ranks #2 by total Medicare procedure volume. Dr. Khwaja is among the highest-volume surgeons in Milwaukie.
What are the quality ratings for hospitals where Dr. Khwaja practices?
Peacehealth St John Medical Center (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Providence Milwaukie Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Peacehealth Southwest Medical Cente (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 Milwaukie, Oregon
Dr. Khwaja's 12 Medicare procedures are below the Milwaukie average of 13. The table below compares verified procedure volumes for orthopedic surgeons practicing in Milwaukie.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Paul Ruesch | 17 | Knee |
| Dr. Bret Kean | 11 | 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.