Dr. James Nace, D.O.
Contact & Location
410-601-2663
Baltimore, MD 21215
Philadelphia, PA 19131
Owings Mills, MD 21117
Dr. Nace performs more knee replacement procedures than 52% of orthopedic surgeons in Maryland, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #65 of 138 ranked knee surgeons in Maryland.
About Dr. Nace
Dr. James Nace is a board-certified orthopedic surgeon practicing in Baltimore, Maryland. A Medicare provider since 2008, Dr. Nace performed 38 Medicare-verified knee replacements (#65 in Maryland) and 36 hip replacements in the latest annual CMS data, for a combined total of 74 procedures.
In Maryland, Dr. Nace performs below the state average in knee (38 vs 49), near the state average in hip (36 vs 42).
Dr. Nace's reported Medicare volume is split between knee replacements (38 cases) and hip replacements (36 cases).
Beyond general orthopedic surgery, Dr. Nace holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
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. Nace extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 15 to 74 in the most recent data, a 393% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Nace's 38 verified procedures is near the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 0 | 15 |
| 2014 | 18 | 18 |
| 2015 | 21 | 22 |
| 2016 | 20 | 23 |
| 2017 | 18 | 20 |
| 2018 | 29 | 34 |
| 2019 | 33 | 30 |
| 2020 | 24 | 26 |
| 2021 | 29 | 22 |
| 2022 | 37 | 31 |
| 2023 | 38 | 33 |
| 2024 | 36 | 38 |
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 23% to 28% for knee replacement, 25% to 33% for hip 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. Nace Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. Nace's Medicare-recorded procedure volume has trended upward over 12 years, increasing 393% from 15 procedures in 2013 to 74 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. Nace
How does Dr. Nace's procedure volume compare to other Maryland surgeons?
Dr. Nace has performed 74 Medicare-verified joint replacement procedures. This is in line with the Maryland average of 71 procedures per surgeon. Dr. Nace ranks #57 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Nace perform?
Dr. Nace's Medicare data shows procedures in knee replacement (38 cases) and hip replacement (36 cases).
Are there other orthopedic surgeons near Dr. Nace 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. Nace 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 23% to 28% for knee replacement, 25% to 33% for hip replacement, which puts Dr. Nace's total volume across all insurers at roughly 240 to 310 procedures against the 74 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. Nace's procedure volume changed over time?
Yes. Dr. Nace's Medicare-recorded volume has increased from 15 procedures in 2013 to 74 in the most recent data, a 393% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 74 procedures in 2024.
Does Dr. Nace perform more than one type of joint replacement?
Yes. Dr. Nace's Medicare data shows procedures in knee replacement (38 cases), hip replacement (36 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Nace affiliated with?
According to CMS facility affiliation data, Dr. Nace is affiliated with Sinai Hospital Of Baltimore, Carroll Hospital Center, Northwest Hospital Center, Levindale Hebrew Geriatric Center And Hospital.
How does Dr. Nace compare to other orthopedic surgeons in Baltimore?
Among the 41 orthopedic surgeons in Baltimore, Dr. Nace ranks #14 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. Nace practices?
Sinai Hospital Of Baltimore (2 out of 5 CMS stars, hip/knee complication rate similar to national average); Carroll Hospital Center (3 out of 5 CMS stars, insufficient case volume for complication rate comparison); Northwest Hospital Center (2 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. Nace's 74 Medicare procedures are below the Baltimore average of 171. 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. Robert McKinstry | 160 | Hip, Knee |
| Dr. Mark Hasenauer | 146 | Hip, Knee |
| Dr. Harpal Khanuja | 119 | 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.