Dr. Sean Griffiths, D.O.
Contact & Location
Walnut Creek, CA 94598
Dr. Sean Griffiths is a board-certified orthopedic surgeon practicing in Walnut Creek, California. A Medicare provider since 2016, Dr. Griffiths has performed 69 Medicare-verified knee replacements (#93 in California) and 55 hip replacements, for a combined total of 124 procedures.
In California, Dr. Griffiths performs above average in knee (69 vs 47 avg), above average in hip (55 vs 41 avg).
Dr. Griffiths's reported Medicare volume is split between knee replacements (69 cases) and hip replacements (55 cases).
Walnut Creek is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Walnut Creek area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Griffiths first appears in the Medicare dataset in 2023. With 2 years of recorded data, the longitudinal trend is still developing.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Griffiths's 69 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. Griffiths Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Griffiths has 2 years of Medicare procedure data beginning in 2023. Additional years of data will provide a clearer picture of volume trends.
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.
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.
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.
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.
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. Griffiths
How does Dr. Griffiths's procedure volume compare to other California surgeons?
Dr. Griffiths has performed 124 Medicare-verified joint replacement procedures. This is significantly above the California average of 68 procedures per surgeon. Dr. Griffiths ranks #89 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Griffiths perform?
Dr. Griffiths's Medicare data shows procedures in knee replacement (69 cases) and hip replacement (55 cases).
Are there other orthopedic surgeons near Dr. Griffiths in Walnut Creek?
Yes. There are 6 orthopedic surgeons in Walnut Creek 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. Griffiths 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. Griffiths's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 124 procedures shown here.
Does Dr. Griffiths perform more than one type of joint replacement?
Yes. Dr. Griffiths's Medicare data shows procedures in knee replacement (69 cases), hip replacement (55 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Griffiths affiliated with?
According to CMS facility affiliation data, Dr. Griffiths is affiliated with John Muir Medical Center - Walnut Creek Campus, Alta Bates Summit Medical Center.
How does Dr. Griffiths compare to other orthopedic surgeons in Walnut Creek?
Among the 6 orthopedic surgeons in Walnut Creek, Dr. Griffiths ranks #3 by total Medicare procedure volume. Dr. Griffiths is among the highest-volume surgeons in Walnut Creek.
What are the quality ratings for hospitals where Dr. Griffiths practices?
John Muir Medical Center - Walnut Creek Campus (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Alta Bates Summit Medical Center (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 Walnut Creek, California
Dr. Griffiths's 124 Medicare procedures are below the Walnut Creek average of 136. The table below compares verified procedure volumes for orthopedic surgeons practicing in Walnut Creek.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Wendy Wong | 249 | Hip, Knee |
| Dr. Louay Toma | 206 | Hip, Knee |
| Dr. Craig Wiseman | 102 | Knee, Shoulder |
| Dr. John Kronick | 101 | Hip, Knee |
| Dr. William Workman | 32 | 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.