Dr. Cay Mierisch, M.D.
Contact & Location
541-768-6300
Corvallis, OR 97330
Roanoke, VA 24014
Dr. Mierisch performs more shoulder replacement procedures than 41% of orthopedic surgeons in Oregon, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #18 of 31 ranked shoulder surgeons in Oregon.
About Dr. Mierisch
Practice. Dr. Cay Mierisch is a board-certified orthopedic surgeon practicing in Corvallis, Oregon. The latest annual CMS data records 23 shoulder replacements. That is #18 in Oregon for shoulder replacement. Dr. Mierisch also holds credentials in Hand Surgery. A Medicare provider since 2006.
Trend. Dr. Mierisch first appears in the Medicare data in 2023. With 2 years on record, the trend is still short.
National context. Among 2,217 shoulder replacement surgeons tracked nationally, 23 procedures is below the national average of 29. Medicare covers part of all joint replacements, so true volume is likely higher.
Local context. Corvallis has 4 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume
Verified Medicare data is available for 2 years: 26 procedures in 2023 and 23 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. Mierisch Compares
Procedure volume compared to the Oregon state average.
Volume Trend Analysis
Dr. Mierisch 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 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.
Rehabilitation Roadmap: Your Complete Recovery GuideA structured physical therapy progression from the first post-op exercises through full strength and mobility restoration over 3 to 6 months.
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. Mierisch
How does Dr. Mierisch's procedure volume compare to other Oregon surgeons?
Dr. Mierisch has performed 23 Medicare-verified joint replacement procedures. The Oregon average is 63 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Mierisch ranks #83 out of 101 orthopedic surgeons in Oregon.
What types of joint replacement does Dr. Mierisch perform?
Dr. Mierisch's reported Medicare volume is focused on shoulder replacement, with 23 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Mierisch with shoulder replacement surgery?
Dr. Mierisch ranks #18 in Oregon for shoulder replacement with 23 Medicare-verified procedures. This high ranking among 101 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Mierisch in Corvallis?
Yes. There are 4 orthopedic surgeons in Corvallis 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 Oregon surgeons.
What does the Medicare data for Dr. Mierisch 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. Mierisch's total volume across all insurers at roughly 60 to 80 procedures against the 23 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.
Which hospitals is Dr. Mierisch affiliated with?
According to CMS facility affiliation data, Dr. Mierisch is affiliated with Good Samaritan Regional Medical Center, Samaritan Lebanon Community Hospital, Samaritan Pacific Community Hospital, Samaritan North Lincoln Hospital, Samaritan Albany General Hospital.
How does Dr. Mierisch compare to other orthopedic surgeons in Corvallis?
Among the 4 orthopedic surgeons in Corvallis, Dr. Mierisch ranks #3 by total Medicare procedure volume. Dr. Mierisch is among the highest-volume surgeons in Corvallis.
What are the quality ratings for hospitals where Dr. Mierisch practices?
Good Samaritan Regional Medical Center (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Samaritan Lebanon Community Hospital (1 out of 5 CMS stars); Samaritan Pacific Community Hospital (2 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Corvallis, Oregon
Dr. Mierisch's 23 Medicare procedures are below the Corvallis average of 39. The table below compares verified procedure volumes for orthopedic surgeons practicing in Corvallis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Richard Stanley | 84 | Hip, Knee, Shoulder |
| Dr. Nicholas Tedesco | 33 | Hip, Knee |
| Dr. Jonathan Evans | 17 | 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.