Dr. Mark Dillon, MD
Contact & Location
Indianapolis, IN 46202
Dr. Mark Dillon is a board-certified orthopedic surgeon practicing in Indianapolis, Indiana. A Medicare provider since 2006, Dr. Dillon has performed 38 Medicare-verified shoulder replacements, ranking #8 in Indiana.
In Indiana, Dr. Dillon performs above average in shoulder (38 vs 23 avg).
Dr. Dillon's Medicare data shows a focused shoulder replacement practice with 38 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.
Beyond general orthopedic surgery, Dr. Dillon holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Indianapolis is home to 30 orthopedic surgeons in the current Medicare dataset. Patients in the Indianapolis area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Dillon extend back to 2022, covering 3 years of data. Over that period, recorded procedure volume increased from 21 to 38 in the most recent data, a 81% increase. This sustained growth reflects an expanding joint replacement practice.
Among 2,213 shoulder replacement surgeons tracked nationally, Dr. Dillon's 38 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. Dillon Compares
Procedure volume compared to the Indiana state average.
Volume Trend Analysis
Dr. Dillon's Medicare-recorded procedure volume has trended upward over 3 years, increasing 81% from 21 procedures in 2022 to 38 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:
Evidence-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.
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. Dillon
How does Dr. Dillon's procedure volume compare to other Indiana surgeons?
Dr. Dillon has performed 38 Medicare-verified joint replacement procedures. The Indiana average is 60 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Dillon ranks #142 out of 224 orthopedic surgeons in Indiana.
What types of joint replacement does Dr. Dillon perform?
Dr. Dillon's reported Medicare volume is focused on shoulder replacement, with 38 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
How experienced is Dr. Dillon with shoulder replacement surgery?
Dr. Dillon ranks #8 in Indiana for shoulder replacement with 38 Medicare-verified procedures. This high ranking among 224 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Dillon in Indianapolis?
Yes. There are 30 orthopedic surgeons in Indianapolis 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 Indiana surgeons.
What does the Medicare data for Dr. Dillon 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. Dillon's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 38 procedures shown here.
Has Dr. Dillon's procedure volume changed over time?
Yes. Dr. Dillon's Medicare-recorded volume has increased from 21 procedures in 2022 to 38 in the most recent data, a 81% increase over 3 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 38 procedures in 2024.
Which hospitals is Dr. Dillon affiliated with?
According to CMS facility affiliation data, Dr. Dillon is affiliated with Indiana University Health, Indiana University Health North Hospital.
How does Dr. Dillon compare to other orthopedic surgeons in Indianapolis?
Among the 30 orthopedic surgeons in Indianapolis, Dr. Dillon ranks #24 by total Medicare procedure volume. The highest-volume surgeon in Indianapolis has 162 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Dillon practices?
Indiana University Health (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Indiana University Health North Hospital (4 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 Indianapolis, Indiana
Dr. Dillon's 38 Medicare procedures are below the Indianapolis average of 116. The table below compares verified procedure volumes for orthopedic surgeons practicing in Indianapolis.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. George Vestermark | 162 | Hip, Knee |
| Dr. Joshua Carter | 146 | Hip, Knee |
| Dr. Daniel Gerow | 127 | Hip, Knee |
| Dr. Robert Meneghini | 123 | Hip, Knee |
| Dr. Christopher Pomeroy | 108 | Hip, Knee |
| Dr. Patrick Millikan | 105 | 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.