Dr. Michael Krosin, MD
Contact & Location
510-750-1967
Castro Valley, CA 94546
About Dr. Krosin
Dr. Michael Krosin is a board-certified orthopedic surgeon practicing in Castro Valley, California. A Medicare provider since 2009, Dr. Krosin performed 12 Medicare-verified hip replacements (#323 in California) and 11 knee replacements in the latest annual CMS data, for a combined total of 23 procedures.
In California, Dr. Krosin performs below the state average in hip (12 vs 41), below the state average in knee (11 vs 47).
Dr. Krosin's reported Medicare volume is split between hip replacements (12 cases) and knee replacements (11 cases).
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. Krosin first appears in the Medicare dataset in 2023. With 2 years of recorded data, the longitudinal trend is still developing.
Dr. Krosin's 12 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
Verified Medicare data is available for 2 years: 31 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 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. Krosin Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Krosin 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 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. Krosin
How does Dr. Krosin's procedure volume compare to other California surgeons?
Dr. Krosin has performed 23 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. Krosin ranks #444 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Krosin perform?
Dr. Krosin's Medicare data shows procedures in hip replacement (12 cases) and knee replacement (11 cases).
Are there other orthopedic surgeons near Dr. Krosin 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. Krosin 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. Krosin's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 23 procedures shown here.
Does Dr. Krosin perform more than one type of joint replacement?
Yes. Dr. Krosin's Medicare data shows procedures in hip replacement (12 cases), knee replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Krosin affiliated with?
According to CMS facility affiliation data, Dr. Krosin is affiliated with Eden Medical Center, Highland Hospital.
What are the quality ratings for hospitals where Dr. Krosin practices?
Eden Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Highland Hospital (1 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 Castro Valley, California
Dr. Krosin's 23 Medicare procedures are above the Castro Valley average of 19. The table below compares verified procedure volumes for orthopedic surgeons practicing in Castro Valley.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Robert Martin | 14 | 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.