Dr. Guido Marra, MD
Contact & Location
Chicago, IL 60611
Dr. Guido Marra is a board-certified orthopedic surgeon practicing in Chicago, Illinois. A Medicare provider since 2006, Dr. Marra has performed 51 Medicare-verified shoulder replacements, ranking #10 in Illinois.
In Illinois, Dr. Marra performs above average in shoulder (51 vs 27 avg).
Dr. Marra's Medicare data shows a focused shoulder replacement practice with 51 verified procedures. Surgeons who concentrate on a single procedure type often develop deep procedural expertise, though total practice volume may include additional procedures not captured in Medicare fee-for-service data.
Chicago is home to 41 orthopedic surgeons in the current Medicare dataset. Patients in the Chicago area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Marra extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 30 to 51 in the most recent data, a 70% increase. This sustained growth reflects an expanding joint replacement practice.
Among 2,213 shoulder replacement surgeons tracked nationally, Dr. Marra's 51 verified procedures is above the national average of 29.
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. Marra Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Marra's Medicare-recorded procedure volume has trended upward over 12 years, increasing 70% from 30 procedures in 2013 to 51 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.
Recovery Timeline: Week-by-Week ExpectationsA detailed week-by-week guide covering pain levels, mobility milestones, physical therapy progression, and when to expect a return to daily activities.
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. Marra
How does Dr. Marra's procedure volume compare to other Illinois surgeons?
Dr. Marra has performed 51 Medicare-verified joint replacement procedures. The Illinois average is 69 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Marra ranks #153 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Marra perform?
Dr. Marra's reported Medicare volume is focused on shoulder replacement, with 51 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Marra with shoulder replacement surgery?
Dr. Marra ranks #10 in Illinois for shoulder replacement with 51 Medicare-verified procedures. This high ranking among 316 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Marra in Chicago?
Yes. There are 41 orthopedic surgeons in Chicago 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 Illinois surgeons.
What does the Medicare data for Dr. Marra 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. Marra's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 51 procedures shown here.
Has Dr. Marra's procedure volume changed over time?
Yes. Dr. Marra's Medicare-recorded volume has increased from 30 procedures in 2013 to 51 in the most recent data, a 70% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 54 procedures in 2019.
Which hospitals is Dr. Marra affiliated with?
According to CMS facility affiliation data, Dr. Marra is affiliated with Northwestern Memorial Hospital, Elmhurst Memorial Hospital, Northwestern Medicine Central Dupage Hospital, Palos Community Hospital, Edward Hospital.
How does Dr. Marra compare to other orthopedic surgeons in Chicago?
Among the 41 orthopedic surgeons in Chicago, Dr. Marra ranks #18 by total Medicare procedure volume. The highest-volume surgeon in Chicago has 318 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Marra practices?
Northwestern Memorial Hospital (5 out of 5 CMS stars, hip/knee complication rate similar to national average); Elmhurst Memorial Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Northwestern Medicine Central Dupage Hospital (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 Chicago, Illinois
Dr. Marra's 51 Medicare procedures are below the Chicago average of 208. The table below compares verified procedure volumes for orthopedic surgeons practicing in Chicago.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Denis Nam | 318 | Hip, Knee |
| Dr. Vasili Karas | 287 | Hip, Knee |
| Dr. Raju Ghate | 257 | Knee |
| Dr. Hany Bedair | 249 | Hip, Knee |
| Dr. Tad Gerlinger | 155 | Hip, Knee |
| Dr. Kevin Hardt | 141 | 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.