Knee
Dr. Eric Owashi, M.D.
Dr. Eric Owashi is a board-certified orthopedic surgeon practicing in Lancaster, California. A Medicare provider since 2015, Dr. Owashi has performed 19 Medicare-verified knee replacements, ranking #358 in California.
In California, Dr. Owashi performs below average in knee (19 vs 45 avg).
Dr. Owashi's Medicare data shows a focused knee replacement practice with 19 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Lancaster is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Lancaster area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Owashi's Medicare data spans 4 years, beginning in 2020. Volume peaked at 86 procedures in 2021 before settling at 19 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Owashi's 19 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Owashi Compares
Procedure volume compared to the California state average.
Contact & Location
Lancaster, CA 93534
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Owashi's recorded volume peaked at 86 procedures in 2021 and stood at 19 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
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.
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.
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. Owashi
How does Dr. Owashi's procedure volume compare to other California surgeons?
Dr. Owashi has performed 19 Medicare-verified joint replacement procedures. The California average is 65 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Owashi ranks #464 out of 608 orthopedic surgeons in California.
What types of joint replacement does Dr. Owashi perform?
Dr. Owashi's reported Medicare volume is focused on knee replacement, with 19 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Owashi in Lancaster?
Yes. There are 3 orthopedic surgeons in Lancaster 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. Owashi 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. Owashi's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 19 procedures shown here.
Has Dr. Owashi's procedure volume changed over time?
Dr. Owashi's Medicare-recorded volume peaked at 86 procedures in 2021 and was 19 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Which hospitals is Dr. Owashi affiliated with?
According to CMS facility affiliation data, Dr. Owashi is affiliated with Antelope Valley Hospital, Palmdale Regional Medical Center.
How does Dr. Owashi compare to other orthopedic surgeons in Lancaster?
Among the 3 orthopedic surgeons in Lancaster, Dr. Owashi ranks #2 by total Medicare procedure volume. Dr. Owashi is among the highest-volume surgeons in Lancaster.
What are the quality ratings for hospitals where Dr. Owashi practices?
Antelope Valley Hospital (1 out of 5 CMS stars, insufficient case volume for complication rate comparison); Palmdale Regional Medical 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 Lancaster, California
Dr. Owashi's 19 Medicare procedures are below the Lancaster average of 39. The table below compares verified procedure volumes for orthopedic surgeons practicing in Lancaster.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Alon Antebi | 83 | Hip, Knee, Shoulder |
| Dr. Justin Sherfey | 15 | Knee |
Patient Reviews & Ratings
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