Dr. Lawrence Walker, MD
Contact & Location
Lake Arrowhead, CA 92352
Dr. Lawrence Walker is a board-certified orthopedic surgeon practicing in Lake Arrowhead, California. Dr. Walker has performed 11 Medicare-verified knee replacements, ranking #481 in California.
In California, Dr. Walker performs below average in knee (11 vs 47 avg).
Dr. Walker's Medicare data shows a focused knee replacement practice with 11 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.
Dr. Walker is the only orthopedic surgeon in Lake Arrowhead represented in the current Medicare dataset, serving as the primary local option for patients considering joint replacement surgery in the area.
Dr. Walker's Medicare data spans 6 years, beginning in 2013. Volume peaked at 27 procedures in 2013 before settling at 11 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Walker's 11 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Walker Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Walker's recorded volume peaked at 27 procedures in 2013 and stood at 11 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Medicare Coverage for Joint ReplacementWhat Medicare Part A and Part B cover for joint replacement surgery, including hospital stays, surgeon fees, anesthesia, and physical therapy.
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. Walker
How does Dr. Walker's procedure volume compare to other California surgeons?
Dr. Walker has performed 11 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Walker ranks #601 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Walker perform?
Dr. Walker's reported Medicare volume is focused on knee replacement, with 11 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Where is Dr. Walker's practice located?
Dr. Walker practices in Lake Arrowhead, California. The office is located at 29099 Hospital Road, Lake Arrowhead, CA 92352. Patients in the surrounding area can consult Dr. Walker for joint replacement evaluation.
What does the Medicare data for Dr. Walker 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. Walker's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 11 procedures shown here.
Has Dr. Walker's procedure volume changed over time?
Dr. Walker's Medicare-recorded volume peaked at 27 procedures in 2013 and was 11 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.
Which hospitals is Dr. Walker affiliated with?
According to CMS facility affiliation data, Dr. Walker is affiliated with Mountains Community Hospital, St Bernardine Medical Center.
What are the quality ratings for hospitals where Dr. Walker practices?
St Bernardine Medical Center (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.
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.