Dr. Robert McKinstry, MD
Contact & Location
Baltimore, MD 21218
Dr. Robert McKinstry is a board-certified orthopedic surgeon practicing in Baltimore, Maryland. A Medicare provider since 2007, Dr. McKinstry has performed 89 Medicare-verified knee replacements (#19 in Maryland) and 71 hip replacements, for a combined total of 160 procedures.
In Maryland, Dr. McKinstry performs above average in knee (89 vs 49 avg), above average in hip (71 vs 42 avg).
Dr. McKinstry's reported Medicare volume is split between knee replacements (89 cases) and hip replacements (71 cases).
Baltimore is home to 41 orthopedic surgeons in the current Medicare dataset. Patients in the Baltimore area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. McKinstry extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 54 to 160 in the most recent data, a 196% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. McKinstry's 89 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. McKinstry Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. McKinstry's Medicare-recorded procedure volume has trended upward over 12 years, increasing 196% from 54 procedures in 2013 to 160 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 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.
What to Expect on the Day of SurgeryA step-by-step walkthrough of your surgical day, from pre-op preparation through anesthesia, the procedure itself, and the first hours of recovery.
Pain Management After Joint ReplacementA comprehensive guide to managing post-surgical pain through medication, physical therapy, cold therapy, and non-pharmacological strategies.
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.
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. McKinstry
How does Dr. McKinstry's procedure volume compare to other Maryland surgeons?
Dr. McKinstry has performed 160 Medicare-verified joint replacement procedures. This is more than 2x the Maryland average of 71 procedures per surgeon. Dr. McKinstry ranks #20 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. McKinstry perform?
Dr. McKinstry's Medicare data shows procedures in knee replacement (89 cases) and hip replacement (71 cases).
How experienced is Dr. McKinstry with knee replacement surgery?
Dr. McKinstry ranks #19 in Maryland for knee replacement with 89 Medicare-verified procedures. This high ranking among 166 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. McKinstry in Baltimore?
Yes. There are 41 orthopedic surgeons in Baltimore 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 Maryland surgeons.
What does the Medicare data for Dr. McKinstry 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. McKinstry's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 160 procedures shown here.
Has Dr. McKinstry's procedure volume changed over time?
Yes. Dr. McKinstry's Medicare-recorded volume has increased from 54 procedures in 2013 to 160 in the most recent data, a 196% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 160 procedures in 2024.
Does Dr. McKinstry perform more than one type of joint replacement?
Yes. Dr. McKinstry's Medicare data shows procedures in knee replacement (89 cases), hip replacement (71 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. McKinstry affiliated with?
According to CMS facility affiliation data, Dr. McKinstry is affiliated with Medstar Union Memorial Hospital.
How does Dr. McKinstry compare to other orthopedic surgeons in Baltimore?
Among the 41 orthopedic surgeons in Baltimore, Dr. McKinstry ranks #4 by total Medicare procedure volume. The highest-volume surgeon in Baltimore has 331 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. McKinstry practices?
Medstar Union Memorial 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 Baltimore, Maryland
Dr. McKinstry's 160 Medicare procedures are below the Baltimore average of 176. The table below compares verified procedure volumes for orthopedic surgeons practicing in Baltimore.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Joseph Ciotola | 331 | Hip, Knee, Shoulder |
| Dr. Frank Ebert | 190 | Hip, Knee |
| Dr. Marc Hungerford | 180 | Hip, Knee |
| Dr. Mark Hasenauer | 146 | Hip, Knee |
| Dr. Harpal Khanuja | 119 | Hip, Knee |
| Dr. David Gold | 106 | 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.