Dr. Charles Moon, M.D.
Contact & Location
Los Angeles, CA 90048
Dr. Charles Moon is a board-certified orthopedic surgeon practicing in Los Angeles, California. A Medicare provider since 2005, Dr. Moon has performed 13 Medicare-verified hip replacements (#306 in California) and 12 knee replacements, for a combined total of 25 procedures.
In California, Dr. Moon performs below average in hip (13 vs 41 avg), below average in knee (12 vs 47 avg).
Dr. Moon's reported Medicare volume is split between hip replacements (13 cases) and knee replacements (12 cases).
Beyond general orthopedic surgery, Dr. Moon holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Los Angeles is home to 34 orthopedic surgeons in the current Medicare dataset. Patients in the Los Angeles area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs. Dr. Moon also maintains hospital privileges in CA and MO, indicating a regional practice that extends beyond California.
Dr. Moon's Medicare data spans 10 years, beginning in 2013. Volume peaked at 49 procedures in 2018 before settling at 25 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Moon's 13 hip replacement procedures is below the national average of 36 among 4,532 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. Moon Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Moon's recorded volume peaked at 49 procedures in 2018 and stood at 25 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 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Moon
How does Dr. Moon's procedure volume compare to other California surgeons?
Dr. Moon has performed 25 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. Moon ranks #423 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Moon perform?
Dr. Moon's Medicare data shows procedures in hip replacement (13 cases) and knee replacement (12 cases).
Are there other orthopedic surgeons near Dr. Moon in Los Angeles?
Yes. There are 34 orthopedic surgeons in Los Angeles 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. Moon 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. Moon's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 25 procedures shown here.
Has Dr. Moon's procedure volume changed over time?
Dr. Moon's Medicare-recorded volume peaked at 49 procedures in 2018 and was 25 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. Moon perform more than one type of joint replacement?
Yes. Dr. Moon's Medicare data shows procedures in hip replacement (13 cases), knee replacement (12 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Moon affiliated with?
According to CMS facility affiliation data, Dr. Moon is affiliated with Cedars-Sinai Medical Center, Mercy Hospital Southeast. Dr. Moon maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Moon compare to other orthopedic surgeons in Los Angeles?
Among the 34 orthopedic surgeons in Los Angeles, Dr. Moon ranks #23 by total Medicare procedure volume. The highest-volume surgeon in Los Angeles has 211 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Moon practices?
Cedars-Sinai Medical Center (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Mercy Hospital Southeast (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 Los Angeles, California
Dr. Moon's 25 Medicare procedures are below the Los Angeles average of 108. The table below compares verified procedure volumes for orthopedic surgeons practicing in Los Angeles.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. John Tiberi | 211 | Hip, Knee |
| Dr. Daniel Oakes | 192 | Hip, Knee |
| Dr. Micah Adamson | 98 | Hip, Knee |
| Dr. Vishal Hegde | 97 | Hip, Knee |
| Dr. Andrew Spitzer | 71 | Hip, Knee |
| Dr. Adam Sassoon | 62 | 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.