Dr. Erik Zeegen, M.D.
Dr. Erik Zeegen is a board-certified orthopedic surgeon practicing in Tarzana, California. A Medicare provider since 2005, Dr. Zeegen has performed 131 Medicare-verified knee replacements (#24 in California) and 101 hip replacements, for a combined total of 232 procedures.
In California, Dr. Zeegen performs well above average in knee (131 vs 45 avg), well above average in hip (101 vs 41 avg).
Dr. Zeegen's reported Medicare volume is split between knee replacements (131 cases) and hip replacements (101 cases).
Beyond general orthopedic surgery, Dr. Zeegen holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Tarzana is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Tarzana area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Zeegen extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 122 to 232 in the most recent data, a 90% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,720 knee replacement surgeons tracked nationally, Dr. Zeegen's 131 verified procedures is more than 2x 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. Zeegen Compares
Procedure volume compared to the California state average.
Contact & Location
Tarzana, CA 91436
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Zeegen's Medicare-recorded procedure volume has trended upward over 11 years, increasing 90% from 122 procedures in 2013 to 232 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.
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 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. Zeegen
How does Dr. Zeegen's procedure volume compare to other California surgeons?
Dr. Zeegen has performed 232 Medicare-verified joint replacement procedures. This is more than 3x the California average of 65 procedures per surgeon. Dr. Zeegen ranks #20 out of 608 orthopedic surgeons in California.
What types of joint replacement does Dr. Zeegen perform?
Dr. Zeegen's Medicare data shows procedures in knee replacement (131 cases) and hip replacement (101 cases).
Are there other orthopedic surgeons near Dr. Zeegen in Tarzana?
Yes. There are 2 orthopedic surgeons in Tarzana 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. Zeegen 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. Zeegen's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 232 procedures shown here.
Has Dr. Zeegen's procedure volume changed over time?
Yes. Dr. Zeegen's Medicare-recorded volume has increased from 122 procedures in 2013 to 232 in the most recent data, a 90% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 232 procedures in 2023.
Does Dr. Zeegen perform more than one type of joint replacement?
Yes. Dr. Zeegen's Medicare data shows procedures in knee replacement (131 cases), hip replacement (101 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Zeegen affiliated with?
According to CMS facility affiliation data, Dr. Zeegen is affiliated with Santa Monica - Ucla Med Ctr & Orthopaedic Hospital, Ronald Reagan Ucla Medical Center, Ucla West Valley Medical Center.
What are the quality ratings for hospitals where Dr. Zeegen practices?
Santa Monica - Ucla Med Ctr & Orthopaedic Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Ronald Reagan Ucla Medical Center (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Ucla West Valley 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 Tarzana, California
Dr. Zeegen's 232 Medicare procedures are above the Tarzana average of 132. The table below compares verified procedure volumes for orthopedic surgeons practicing in Tarzana.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Carlos Guanche | 31 | Hip, Shoulder |
Patient Reviews & Ratings
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