Dr. Stephen Gregorius, M.D.
Contact & Location
Salinas, CA 93901
Dr. Stephen Gregorius is a board-certified orthopedic surgeon practicing in Salinas, California. A Medicare provider since 2008, Dr. Gregorius has performed 65 Medicare-verified knee replacements (#101 in California) and 43 hip replacements, for a combined total of 108 procedures.
In California, Dr. Gregorius performs above average in knee (65 vs 47 avg), near average in hip (43 vs 41 avg).
Dr. Gregorius's reported Medicare volume is split between knee replacements (65 cases) and hip replacements (43 cases).
Salinas is home to 5 orthopedic surgeons in the current Medicare dataset. Patients in the Salinas area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Gregorius's Medicare record spans 6 years from 2019 through 2024. Procedure volume has remained consistent during that period, ranging from 78 to 119 procedures per year, reflecting a steady joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Gregorius's 65 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. Gregorius Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Gregorius's procedure volume has been consistent across 6 years of Medicare data, ranging from 78 to 119 procedures per year. This stability suggests a well-established joint replacement practice.
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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
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.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
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. Gregorius
How does Dr. Gregorius's procedure volume compare to other California surgeons?
Dr. Gregorius has performed 108 Medicare-verified joint replacement procedures. This is significantly above the California average of 68 procedures per surgeon. Dr. Gregorius ranks #100 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Gregorius perform?
Dr. Gregorius's Medicare data shows procedures in knee replacement (65 cases) and hip replacement (43 cases).
Are there other orthopedic surgeons near Dr. Gregorius in Salinas?
Yes. There are 5 orthopedic surgeons in Salinas 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. Gregorius 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. Gregorius's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 108 procedures shown here.
Has Dr. Gregorius's procedure volume changed over time?
Dr. Gregorius's procedure volume has been relatively stable over 6 years of Medicare data, ranging from 78 to 119 procedures per year between 2019 and 2024. Consistent volume over multiple years reflects a steady joint replacement practice.
Does Dr. Gregorius perform more than one type of joint replacement?
Yes. Dr. Gregorius's Medicare data shows procedures in knee replacement (65 cases), hip replacement (43 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Gregorius affiliated with?
According to CMS facility affiliation data, Dr. Gregorius is affiliated with Logan Health - Whitefish, Logan Health Medical Center. Dr. Gregorius maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Gregorius compare to other orthopedic surgeons in Salinas?
Among the 5 orthopedic surgeons in Salinas, Dr. Gregorius ranks #1 by total Medicare procedure volume. Dr. Gregorius has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Gregorius practices?
Logan Health - Whitefish (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Logan Health 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 Salinas, California
Dr. Gregorius's 108 Medicare procedures are above the Salinas average of 58. The table below compares verified procedure volumes for orthopedic surgeons practicing in Salinas.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Bert Tardieu | 70 | Hip, Knee, Shoulder |
| Dr. John Bonano | 65 | Hip, Knee |
| Dr. Allen Hershey | 34 | Knee |
| Dr. Kartheek Reddy | 15 | 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.