Dr. Sergio Ulloa, D.O.
Dr. Sergio Ulloa is a board-certified orthopedic surgeon practicing in Athens, Ohio. Dr. Ulloa has performed 22 Medicare-verified knee replacements (#208 in Ohio) and 15 shoulder replacements, for a combined total of 37 procedures.
In Ohio, Dr. Ulloa performs below average in knee (22 vs 40 avg), below average in shoulder (15 vs 27 avg).
Dr. Ulloa's reported Medicare volume is split between knee replacements (22 cases) and shoulder replacements (15 cases).
Athens is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Athens area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Ulloa extend back to 2015, covering 9 years of data. Over that period, recorded procedure volume increased from 19 to 37 in the most recent data, a 95% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Ulloa's 22 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. Ulloa Compares
Procedure volume compared to the Ohio state average.
Contact & Location
Athens, OH 45701
Verified Case Volume Trends (2013-Current)
Volume Trend Analysis
Dr. Ulloa's Medicare-recorded procedure volume has trended upward over 9 years, increasing 95% from 19 procedures in 2015 to 37 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.
Prehabilitation: Preparing Your Body for SurgeryEvidence-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.
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. Ulloa
How does Dr. Ulloa's procedure volume compare to other Ohio surgeons?
Dr. Ulloa has performed 37 Medicare-verified joint replacement procedures. The Ohio average is 57 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Ulloa ranks #216 out of 378 orthopedic surgeons in Ohio.
What types of joint replacement does Dr. Ulloa perform?
Dr. Ulloa's Medicare data shows procedures in knee replacement (22 cases) and shoulder replacement (15 cases).
Are there other orthopedic surgeons near Dr. Ulloa in Athens?
Yes. There are 3 orthopedic surgeons in Athens 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 Ohio surgeons.
What does the Medicare data for Dr. Ulloa 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. Ulloa's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 37 procedures shown here.
Has Dr. Ulloa's procedure volume changed over time?
Yes. Dr. Ulloa's Medicare-recorded volume has increased from 19 procedures in 2015 to 37 in the most recent data, a 95% increase over 9 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 42 procedures in 2018.
Does Dr. Ulloa perform more than one type of joint replacement?
Yes. Dr. Ulloa's Medicare data shows procedures in knee replacement (22 cases), shoulder replacement (15 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Ulloa affiliated with?
According to CMS facility affiliation data, Dr. Ulloa is affiliated with Ohiohealth O'Bleness Hospital, Holzer Medical Center.
How does Dr. Ulloa compare to other orthopedic surgeons in Athens?
Among the 3 orthopedic surgeons in Athens, Dr. Ulloa ranks #1 by total Medicare procedure volume. Dr. Ulloa has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Ulloa practices?
Ohiohealth O'Bleness Hospital (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Holzer Medical Center (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 Athens, Ohio
Dr. Ulloa's 37 Medicare procedures are above the Athens average of 23. The table below compares verified procedure volumes for orthopedic surgeons practicing in Athens.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jason Cox | 19 | Knee |
| Dr. Jason Reed | 12 | Knee |
Patient Reviews & Ratings
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