Dr. Christopher Cox, M.D.
Dr. Christopher Cox is a board-certified orthopedic surgeon practicing in San Francisco, California. A Medicare provider since 2006, Dr. Cox has performed 45 Medicare-verified knee replacements (#156 in California) and 31 hip replacements, for a combined total of 76 procedures.
In California, Dr. Cox performs near average in knee (45 vs 45 avg), below average in hip (31 vs 41 avg).
Dr. Cox's reported Medicare volume is split between knee replacements (45 cases) and hip replacements (31 cases).
San Francisco is home to 23 orthopedic surgeons in the current Medicare dataset. Patients in the San Francisco area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Cox's Medicare data spans 11 years, beginning in 2013. Volume peaked at 115 procedures in 2018 before settling at 76 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Cox's 45 verified procedures is near the national average of 45.
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. Cox Compares
Procedure volume compared to the California state average.
Contact & Location
San Francisco, CA 94118
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Cox's recorded volume peaked at 115 procedures in 2018 and stood at 76 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.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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. Cox
How does Dr. Cox's procedure volume compare to other California surgeons?
Dr. Cox has performed 76 Medicare-verified joint replacement procedures. This is in line with the California average of 65 procedures per surgeon. Dr. Cox ranks #169 out of 608 orthopedic surgeons in California.
What types of joint replacement does Dr. Cox perform?
Dr. Cox's Medicare data shows procedures in knee replacement (45 cases) and hip replacement (31 cases).
Are there other orthopedic surgeons near Dr. Cox in San Francisco?
Yes. There are 23 orthopedic surgeons in San Francisco 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. Cox 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. Cox's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 76 procedures shown here.
Has Dr. Cox's procedure volume changed over time?
Dr. Cox's Medicare-recorded volume peaked at 115 procedures in 2018 and was 76 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.
Does Dr. Cox perform more than one type of joint replacement?
Yes. Dr. Cox's Medicare data shows procedures in knee replacement (45 cases), hip replacement (31 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Cox affiliated with?
According to CMS facility affiliation data, Dr. Cox is affiliated with California Pacific Medical Center - Mission Bernal, California Pacific Medical Center- Van Ness Campus, California Pacific Medical Ctr-Davies Campus Hosp, Sonoma Valley Hospital.
How does Dr. Cox compare to other orthopedic surgeons in San Francisco?
Among the 23 orthopedic surgeons in San Francisco, Dr. Cox ranks #6 by total Medicare procedure volume. The highest-volume surgeon in San Francisco has 162 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Cox practices?
California Pacific Medical Center - Mission Bernal (4 out of 5 CMS stars, hip/knee complication rate similar to national average); California Pacific Medical Center- Van Ness Campus (3 out of 5 CMS stars); California Pacific Medical Ctr-Davies Campus Hosp (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 San Francisco, California
Dr. Cox's 76 Medicare procedures are below the San Francisco average of 114. The table below compares verified procedure volumes for orthopedic surgeons practicing in San Francisco.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Barry | 162 | Hip, Knee |
| Dr. Peter Callander | 140 | Hip, Knee |
| Dr. Derek Ward | 133 | Hip, Knee |
| Dr. Erik Hansen | 120 | Hip, Knee |
| Dr. James Kelly | 93 | Shoulder |
| Dr. Husam Almajed | 75 | Shoulder |
Patient Reviews & Ratings
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