Dr. Erik Hansen
Contact & Location
San Francisco, CA 94158
Dr. Erik Hansen is a board-certified orthopedic surgeon practicing in San Francisco, California. A Medicare provider since 2007, Dr. Hansen has performed 77 Medicare-verified knee replacements (#84 in California) and 56 hip replacements, for a combined total of 133 procedures.
In California, Dr. Hansen performs above average in knee (77 vs 47 avg), above average in hip (56 vs 41 avg).
Dr. Hansen's reported Medicare volume is split between knee replacements (77 cases) and hip replacements (56 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.
Medicare records for Dr. Hansen extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 43 to 133 in the most recent data, a 209% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Hansen's 77 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
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. Hansen Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Hansen's Medicare-recorded procedure volume has trended upward over 12 years, increasing 209% from 43 procedures in 2013 to 133 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. Hansen
How does Dr. Hansen's procedure volume compare to other California surgeons?
Dr. Hansen has performed 133 Medicare-verified joint replacement procedures. This is significantly above the California average of 68 procedures per surgeon. Dr. Hansen ranks #83 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Hansen perform?
Dr. Hansen's Medicare data shows procedures in knee replacement (77 cases) and hip replacement (56 cases).
Are there other orthopedic surgeons near Dr. Hansen 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. Hansen 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. Hansen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 133 procedures shown here.
Has Dr. Hansen's procedure volume changed over time?
Yes. Dr. Hansen's Medicare-recorded volume has increased from 43 procedures in 2013 to 133 in the most recent data, a 209% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 133 procedures in 2024.
Does Dr. Hansen perform more than one type of joint replacement?
Yes. Dr. Hansen's Medicare data shows procedures in knee replacement (77 cases), hip replacement (56 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Hansen affiliated with?
According to CMS facility affiliation data, Dr. Hansen is affiliated with Ucsf Medical Center, Mills-Peninsula Medical Center, Novato Community Hospital, Sierra Nevada Memorial Hospital.
How does Dr. Hansen compare to other orthopedic surgeons in San Francisco?
Among the 23 orthopedic surgeons in San Francisco, Dr. Hansen ranks #4 by total Medicare procedure volume. The highest-volume surgeon in San Francisco has 201 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Hansen practices?
Ucsf Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Mills-Peninsula Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Novato Community Hospital (5 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. Hansen's 133 Medicare procedures are below the San Francisco average of 137. The table below compares verified procedure volumes for orthopedic surgeons practicing in San Francisco.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jeffrey Barry | 201 | Hip, Knee |
| Dr. Derek Ward | 190 | Hip, Knee |
| Dr. Peter Callander | 177 | Hip, Knee |
| Dr. Christopher Cox | 95 | Hip, Knee |
| Dr. John Belzer | 88 | Knee, Shoulder |
| Dr. Heather Roberts | 74 | 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.