Dr. Sergio Ulloa, D.O.
Contact & Location
740-566-4720
Athens, OH 45701
About Dr. Ulloa
Dr. Sergio Ulloa is a board-certified orthopedic surgeon practicing in Athens, Ohio. A Medicare provider since 2007, Dr. Ulloa completed 34 knee replacements (#140 in Ohio), 15 shoulder replacements, and 12 hip replacements in the latest annual CMS data, totaling 61 Medicare-verified procedures.
In Ohio, Dr. Ulloa performs near the state average in knee (34 vs 41), below the state average in shoulder (15 vs 29), below the state average in hip (12 vs 32).
Dr. Ulloa performs all three major joint replacement procedures — hip, knee, and shoulder — indicating a broad scope of orthopedic practice. The largest share is knee replacements (34 cases), followed by shoulder replacements (15) and hip replacements (12).
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 10 years of data. Over that period, recorded procedure volume increased from 19 to 61 in the most recent data, a 221% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Ulloa's 34 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 0 | 0 | 0 |
| 2014 | 0 | 0 | 0 |
| 2015 | 0 | 19 | 0 |
| 2016 | 0 | 14 | 0 |
| 2017 | 0 | 25 | 0 |
| 2018 | 11 | 31 | 0 |
| 2019 | 12 | 19 | 0 |
| 2020 | 0 | 24 | 0 |
| 2021 | 11 | 18 | 0 |
| 2022 | 13 | 29 | 0 |
| 2023 | 0 | 22 | 15 |
| 2024 | 12 | 34 | 15 |
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.
Volume Trend Analysis
Dr. Ulloa's Medicare-recorded procedure volume has trended upward over 10 years, increasing 221% from 19 procedures in 2015 to 61 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 61 Medicare-verified joint replacement procedures. This is in line with the Ohio average of 59 procedures per surgeon. Dr. Ulloa ranks #137 out of 370 orthopedic surgeons in Ohio.
What types of joint replacement does Dr. Ulloa perform?
Dr. Ulloa performs all three major joint replacement procedures: knee replacement (34 cases), shoulder replacement (15 cases), hip replacement (12 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
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 61 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 61 in the most recent data, a 221% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 61 procedures in 2024.
Does Dr. Ulloa perform more than one type of joint replacement?
Yes. Dr. Ulloa's Medicare data shows procedures in knee replacement (34 cases), shoulder replacement (15 cases), hip replacement (12 cases). Performing all three major joint replacements places Dr. Ulloa among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
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 61 Medicare procedures are above the Athens average of 34. The table below compares verified procedure volumes for orthopedic surgeons practicing in Athens.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Jason Reed | 21 | Knee |
| Dr. Jason Cox | 20 | 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.