Dr. Robert Martin, M.D.
Contact & Location
510-247-8281
Castro Valley, CA 94546
About Dr. Martin
Dr. Robert Martin is a board-certified orthopedic surgeon practicing in Castro Valley, California. A Medicare provider since 2006, Dr. Martin performed 14 Medicare-verified knee replacements in the latest annual CMS data, ranking #427 in California.
In California, Dr. Martin performs below the state average in knee (14 vs 47).
Dr. Martin's Medicare data shows a focused knee replacement practice with 14 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.
Castro Valley is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Castro Valley area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Martin's Medicare data spans 12 years, beginning in 2013. Volume peaked at 27 procedures in 2021 before settling at 14 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Martin's 14 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)
| Year | Knee Replacement |
|---|---|
| 2013 | 18 |
| 2014 | 17 |
| 2015 | 13 |
| 2016 | 19 |
| 2017 | 15 |
| 2018 | 25 |
| 2019 | 24 |
| 2020 | 22 |
| 2021 | 27 |
| 2022 | 20 |
| 2023 | 20 |
| 2024 | 14 |
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. Martin Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Martin's recorded volume peaked at 27 procedures in 2021 and stood at 14 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.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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. Martin
How does Dr. Martin's procedure volume compare to other California surgeons?
Dr. Martin has performed 14 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. Martin ranks #539 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Martin perform?
Dr. Martin's reported Medicare volume is focused on knee replacement, with 14 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Martin in Castro Valley?
Yes. There are 2 orthopedic surgeons in Castro Valley 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. Martin 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. Martin's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 14 procedures shown here.
Has Dr. Martin's procedure volume changed over time?
Dr. Martin's Medicare-recorded volume peaked at 27 procedures in 2021 and was 14 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. Martin affiliated with?
According to CMS facility affiliation data, Dr. Martin is affiliated with Eden Medical Center.
What are the quality ratings for hospitals where Dr. Martin practices?
Eden Medical Center (4 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 Castro Valley, California
Dr. Martin's 14 Medicare procedures are below the Castro Valley average of 19. The table below compares verified procedure volumes for orthopedic surgeons practicing in Castro Valley.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Michael Krosin | 23 | 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.