Dr. Joseph Ajdinovich, MD
Contact & Location
217-342-3400
Effingham, IL 62401
Vandalia, IL 62471
Dr. Ajdinovich performs more shoulder replacement procedures than 3% of orthopedic surgeons in Illinois, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #77 of 80 ranked shoulder surgeons in Illinois.
About Dr. Ajdinovich
Dr. Joseph Ajdinovich is a board-certified orthopedic surgeon practicing in Effingham, Illinois. A Medicare provider since 2010, Dr. Ajdinovich performed 11 Medicare-verified shoulder replacements in the latest annual CMS data, ranking #77 in Illinois.
In Illinois, Dr. Ajdinovich performs below the state average in shoulder (11 vs 27).
Dr. Ajdinovich's Medicare data shows a focused shoulder replacement practice with 11 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. Ajdinovich holds additional credentials in Sports Medicine, reflecting subspecialty training that may benefit patients with complex joint conditions.
Effingham is home to 6 orthopedic surgeons in the current Medicare dataset. Patients in the Effingham area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Ajdinovich's Medicare data spans 6 years, beginning in 2019. Volume peaked at 28 procedures in 2021 before settling at 11 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.
Dr. Ajdinovich's 11 shoulder replacement procedures is below the national average of 29 among 2,217 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement | Shoulder Replacement |
|---|---|---|
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 16 | 0 |
| 2020 | 11 | 0 |
| 2021 | 28 | 0 |
| 2022 | 19 | 0 |
| 2023 | 15 | 0 |
| 2024 | 0 | 11 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Ajdinovich Compares
Procedure volume compared to the Illinois state average.
Volume Trend Analysis
Dr. Ajdinovich's recorded volume peaked at 28 procedures in 2021 and stood at 11 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 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.
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.
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. Ajdinovich
How does Dr. Ajdinovich's procedure volume compare to other Illinois surgeons?
Dr. Ajdinovich has performed 11 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. Ajdinovich ranks #315 out of 316 orthopedic surgeons in Illinois.
What types of joint replacement does Dr. Ajdinovich perform?
Dr. Ajdinovich's reported Medicare volume is focused on shoulder replacement, with 11 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Ajdinovich in Effingham?
Yes. There are 6 orthopedic surgeons in Effingham 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. Ajdinovich represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 29% to 37% for shoulder replacement, which puts Dr. Ajdinovich's total volume across all insurers at roughly 30 to 40 procedures against the 11 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Ajdinovich's procedure volume changed over time?
Dr. Ajdinovich's Medicare-recorded volume peaked at 28 procedures in 2021 and was 11 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.
Which hospitals is Dr. Ajdinovich affiliated with?
According to CMS facility affiliation data, Dr. Ajdinovich is affiliated with Sarah Bush Lincoln Health Center, St Anthonys Memorial Hospital, Sarah Bush Lincoln Fayette County Hospital, Ssm Health St Mary'S Hospital -Centralia, Clay County Hospital.
How does Dr. Ajdinovich compare to other orthopedic surgeons in Effingham?
Among the 6 orthopedic surgeons in Effingham, Dr. Ajdinovich ranks #6 by total Medicare procedure volume. The highest-volume surgeon in Effingham has 168 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Ajdinovich practices?
Sarah Bush Lincoln Health Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average); St Anthonys Memorial Hospital (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Sarah Bush Lincoln Fayette County Hospital (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 Effingham, Illinois
Dr. Ajdinovich's 11 Medicare procedures are below the Effingham average of 59. The table below compares verified procedure volumes for orthopedic surgeons practicing in Effingham.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Didi Omiyi | 168 | Hip, Knee |
| Dr. Peter Bonutti | 123 | Hip, Knee |
| Dr. Frank Lee | 22 | Shoulder |
| Dr. Timothy Gray | 15 | Knee |
| Dr. John Powell | 12 | 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.