Dr. Robert Kramer, M.D.
Dr. Robert Kramer is a board-certified orthopedic surgeon practicing in Saint Louis, Missouri. A Medicare provider since 2007, Dr. Kramer has performed 33 Medicare-verified knee replacements (#68 in Missouri) and 13 hip replacements, for a combined total of 46 procedures.
In Missouri, Dr. Kramer performs below average in knee (33 vs 43 avg), below average in hip (13 vs 30 avg).
Dr. Kramer's reported Medicare volume is split between knee replacements (33 cases) and hip replacements (13 cases).
Saint Louis is home to 50 orthopedic surgeons in the current Medicare dataset. Patients in the Saint Louis area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Kramer's Medicare data spans 11 years, beginning in 2013. Volume peaked at 77 procedures in 2015 before settling at 46 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Kramer's 33 knee replacement procedures is below the national average of 45 among 6,720 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
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. Kramer Compares
Procedure volume compared to the Missouri state average.
Contact & Location
Saint Louis, MO 63131
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Kramer's recorded volume peaked at 77 procedures in 2015 and stood at 46 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.
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.
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.
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.
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. Kramer
How does Dr. Kramer's procedure volume compare to other Missouri surgeons?
Dr. Kramer has performed 46 Medicare-verified joint replacement procedures. This is in line with the Missouri average of 56 procedures per surgeon. Dr. Kramer ranks #85 out of 199 orthopedic surgeons in Missouri.
What types of joint replacement does Dr. Kramer perform?
Dr. Kramer's Medicare data shows procedures in knee replacement (33 cases) and hip replacement (13 cases).
Are there other orthopedic surgeons near Dr. Kramer in Saint Louis?
Yes. There are 50 orthopedic surgeons in Saint Louis 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 Missouri surgeons.
What does the Medicare data for Dr. Kramer 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. Kramer's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 46 procedures shown here.
Has Dr. Kramer's procedure volume changed over time?
Dr. Kramer's Medicare-recorded volume peaked at 77 procedures in 2015 and was 46 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.
Does Dr. Kramer perform more than one type of joint replacement?
Yes. Dr. Kramer's Medicare data shows procedures in knee replacement (33 cases), hip replacement (13 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Kramer affiliated with?
According to CMS facility affiliation data, Dr. Kramer is affiliated with Missouri Baptist Medical Center, Barnes-Jewish West County Hospital, St Lukes Hospital.
How does Dr. Kramer compare to other orthopedic surgeons in Saint Louis?
Among the 50 orthopedic surgeons in Saint Louis, Dr. Kramer ranks #23 by total Medicare procedure volume. The highest-volume surgeon in Saint Louis has 263 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Kramer practices?
Missouri Baptist Medical Center (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Barnes-Jewish West County Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); St Lukes Hospital (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 Saint Louis, Missouri
Dr. Kramer's 46 Medicare procedures are below the Saint Louis average of 135. The table below compares verified procedure volumes for orthopedic surgeons practicing in Saint Louis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Ryan Nunley | 263 | Hip, Knee |
| Dr. Michael Hubbard | 135 | Hip, Knee, Shoulder |
| Dr. Christopher Mudd | 130 | Hip, Knee |
| Dr. Ilya Bendich | 128 | Hip, Knee |
| Dr. Coles L'hommedieu | 122 | Hip, Knee |
| Dr. Christopher Palmer | 121 | Hip, Knee |
Patient Reviews & Ratings
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