Hip
Dr. Zefu Liu, DO
Dr. Zefu Liu is a board-certified orthopedic surgeon practicing in Santa Cruz, California. A Medicare provider since 2016, Dr. Liu has performed 15 Medicare-verified hip replacements, ranking #273 in California.
In California, Dr. Liu performs below average in hip (15 vs 41 avg).
Dr. Liu's Medicare data shows a focused hip replacement practice with 15 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.
Beyond general orthopedic surgery, Dr. Liu holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Santa Cruz is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Santa Cruz area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Liu first appears in the Medicare dataset in 2023. With 1 year of recorded data, the longitudinal trend is still developing.
Dr. Liu's 15 hip replacement procedures is below the national average of 36 among 4,526 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. Liu Compares
Procedure volume compared to the California state average.
Contact & Location
Santa Cruz, CA 95065
Verified Case Volume Trends (2013-Current)
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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Liu
How does Dr. Liu's procedure volume compare to other California surgeons?
Dr. Liu has performed 15 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. Liu ranks #510 out of 608 orthopedic surgeons in California.
What types of joint replacement does Dr. Liu perform?
Dr. Liu's reported Medicare volume is focused on hip replacement, with 15 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Liu in Santa Cruz?
Yes. There are 2 orthopedic surgeons in Santa Cruz 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. Liu 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. Liu's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 15 procedures shown here.
Which hospitals is Dr. Liu affiliated with?
According to CMS facility affiliation data, Dr. Liu is affiliated with Southern Hills Hospital And Medical Center, Centennial Hills Hospital Medical Center, Spring Valley Hospital Medical Center. Dr. Liu maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
What are the quality ratings for hospitals where Dr. Liu practices?
Southern Hills Hospital And Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Centennial Hills Hospital Medical Center (1 out of 5 CMS stars, hip/knee complication rate similar to national average); Spring Valley Hospital Medical Center (2 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 Santa Cruz, California
Dr. Liu's 15 Medicare procedures are below the Santa Cruz average of 51. The table below compares verified procedure volumes for orthopedic surgeons practicing in Santa Cruz.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Karl Christoffersen | 86 | Hip, Knee |
Patient Reviews & Ratings
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