Dr. Christopher Hajnik, M.D.
Dr. Christopher Hajnik is a board-certified orthopedic surgeon practicing in Encinitas, California. A Medicare provider since 2008, Dr. Hajnik has performed 52 Medicare-verified hip replacements (#71 in California) and 45 knee replacements, for a combined total of 97 procedures.
In California, Dr. Hajnik performs above average in hip (52 vs 41 avg), near average in knee (45 vs 45 avg).
Dr. Hajnik's reported Medicare volume is split between hip replacements (52 cases) and knee replacements (45 cases).
Beyond general orthopedic surgery, Dr. Hajnik holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Encinitas is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Encinitas area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Hajnik extend back to 2013, covering 11 years of data. Over that period, recorded procedure volume increased from 59 to 97 in the most recent data, a 64% increase. This sustained growth reflects an expanding joint replacement practice.
Among 4,526 hip replacement surgeons tracked nationally, Dr. Hajnik's 52 verified procedures is above the national average of 36.
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. Hajnik Compares
Procedure volume compared to the California state average.
Contact & Location
Encinitas, CA 92024
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Hajnik's Medicare-recorded procedure volume has trended upward over 11 years, increasing 64% from 59 procedures in 2013 to 97 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 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.
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.
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. Hajnik
How does Dr. Hajnik's procedure volume compare to other California surgeons?
Dr. Hajnik has performed 97 Medicare-verified joint replacement procedures. This is in line with the California average of 65 procedures per surgeon. Dr. Hajnik ranks #113 out of 608 orthopedic surgeons in California.
What types of joint replacement does Dr. Hajnik perform?
Dr. Hajnik's Medicare data shows procedures in hip replacement (52 cases) and knee replacement (45 cases).
Are there other orthopedic surgeons near Dr. Hajnik in Encinitas?
Yes. There are 3 orthopedic surgeons in Encinitas 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. Hajnik 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. Hajnik's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 97 procedures shown here.
Has Dr. Hajnik's procedure volume changed over time?
Yes. Dr. Hajnik's Medicare-recorded volume has increased from 59 procedures in 2013 to 97 in the most recent data, a 64% increase over 11 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 106 procedures in 2019.
Does Dr. Hajnik perform more than one type of joint replacement?
Yes. Dr. Hajnik's Medicare data shows procedures in hip replacement (52 cases), knee replacement (45 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Hajnik affiliated with?
According to CMS facility affiliation data, Dr. Hajnik is affiliated with Scripps Memorial Hospital - Encinitas.
How does Dr. Hajnik compare to other orthopedic surgeons in Encinitas?
Among the 3 orthopedic surgeons in Encinitas, Dr. Hajnik ranks #1 by total Medicare procedure volume. Dr. Hajnik has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Hajnik practices?
Scripps Memorial Hospital - Encinitas (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 Encinitas, California
Dr. Hajnik's 97 Medicare procedures are above the Encinitas average of 70. The table below compares verified procedure volumes for orthopedic surgeons practicing in Encinitas.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Morgan Silldorff | 70 | Hip, Knee |
| Dr. Nathan Hammel | 42 | Hip, Knee |
Patient Reviews & Ratings
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