Dr. John Costouros, M.D.
Contact & Location
650-325-1395
Menlo Park, CA 94027
Fremont, CA 94538
Dr. Costouros performs more shoulder replacement procedures than 96% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #5 of 139 ranked shoulder surgeons in California.
About Dr. Costouros
Practice. Dr. John Costouros is a board-certified orthopedic surgeon practicing in Redwood City, California. The latest annual CMS data records 90 shoulder replacements. That is #5 in California for shoulder replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 39 procedures a year to 90, up 131%.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 90 procedures is more than 3x the national average of 29. That is #61 nationally.
Local context. Redwood City has 3 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Shoulder Replacement |
|---|---|
| 2013 | 39 |
| 2014 | 45 |
| 2015 | 48 |
| 2016 | 49 |
| 2017 | 60 |
| 2018 | 63 |
| 2019 | 71 |
| 2020 | 17 |
| 2021 | 56 |
| 2022 | 52 |
| 2023 | 87 |
| 2024 | 90 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Costouros Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Costouros's Medicare-recorded procedure volume has trended upward over 12 years, increasing 131% from 39 procedures in 2013 to 90 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 Shoulder Replacement
If you are considering shoulder replacement surgery, these evidence-based guides can help you prepare and recover:
A 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.
Shoulder Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after shoulder replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full shoulder replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Costouros
How does Dr. Costouros's procedure volume compare to other California surgeons?
Dr. Costouros has performed 90 Medicare-verified joint replacement procedures. This is in line with the California average of 68 procedures per surgeon. Dr. Costouros ranks #132 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Costouros perform?
Dr. Costouros's reported Medicare volume is focused on shoulder replacement, with 90 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Costouros with shoulder replacement surgery?
Dr. Costouros ranks #5 in California for shoulder replacement with 90 Medicare-verified procedures. This high ranking among 613 state surgeons indicates significant experience with this specific procedure.
Where is Dr. Costouros's practice located?
Dr. Costouros's current practice address is in Menlo Park, CA. That address is the current practice address in Dr. Costouros's own CMS NPPES registry entry, which providers maintain themselves. The Medicare claims data used for the rankings on this page was billed from Redwood City, California.
What does the Medicare data for Dr. Costouros represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 29% to 37% for shoulder replacement, which puts Dr. Costouros's total volume across all insurers at roughly 240 to 310 procedures against the 90 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Costouros's procedure volume changed over time?
Yes. Dr. Costouros's Medicare-recorded volume has increased from 39 procedures in 2013 to 90 in the most recent data, a 131% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 90 procedures in 2024.
Which hospitals is Dr. Costouros affiliated with?
According to CMS facility affiliation data, Dr. Costouros is affiliated with Washington Hospital, Stanford Health Care, Mills-Peninsula Medical Center, Adventist Health Sonora, El Camino Health.
How does Dr. Costouros compare to other orthopedic surgeons in Redwood City?
Among the 3 orthopedic surgeons in Redwood City, Dr. Costouros ranks #2 by total Medicare procedure volume. Dr. Costouros is among the highest-volume surgeons in Redwood City.
What are the quality ratings for hospitals where Dr. Costouros practices?
Washington Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Stanford Health Care (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Mills-Peninsula 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 Redwood City, California
Dr. Costouros's 90 Medicare procedures are below the Redwood City average of 112. The table below compares verified procedure volumes for orthopedic surgeons practicing in Redwood City.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Liam Bosch | 177 | Hip, Knee |
| Dr. Neal Berger | 69 | 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.