Dr. Jason Hammond, M.D.
Contact & Location
410-554-6865
Baltimore, MD 21218
About Dr. Hammond
Dr. Jason Hammond is a board-certified orthopedic surgeon practicing in Baltimore, Maryland. A Medicare provider since 2006, Dr. Hammond performed 70 Medicare-verified knee replacements in the latest annual CMS data, ranking #31 in Maryland.
In Maryland, Dr. Hammond performs above the state average in knee (70 vs 49).
Dr. Hammond's Medicare data shows a focused knee replacement practice with 70 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.
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. Hammond extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 29 to 70 in the most recent data, a 141% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Hammond's 70 verified procedures is above the national average of 45.
Verified Case Volume Trends (2013-Current)
| Year | Knee Replacement |
|---|---|
| 2013 | 29 |
| 2014 | 27 |
| 2015 | 32 |
| 2016 | 32 |
| 2017 | 26 |
| 2018 | 29 |
| 2019 | 59 |
| 2020 | 39 |
| 2021 | 49 |
| 2022 | 51 |
| 2023 | 61 |
| 2024 | 70 |
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. Hammond Compares
Procedure volume compared to the Maryland state average.
Volume Trend Analysis
Dr. Hammond's Medicare-recorded procedure volume has trended upward over 12 years, increasing 141% from 29 procedures in 2013 to 70 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.
Questions to Ask Your Surgeon Before Joint ReplacementA practical checklist of questions covering experience, technique, hospital choice, and recovery expectations to discuss during your surgical consultation.
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.
Outpatient Joint Replacement: A Medicare GuideHow outpatient joint replacement works under Medicare, including eligibility criteria, cost differences, and what to expect with same-day discharge.
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. Hammond
How does Dr. Hammond's procedure volume compare to other Maryland surgeons?
Dr. Hammond has performed 70 Medicare-verified joint replacement procedures. This is in line with the Maryland average of 71 procedures per surgeon. Dr. Hammond ranks #61 out of 166 orthopedic surgeons in Maryland.
What types of joint replacement does Dr. Hammond perform?
Dr. Hammond's reported Medicare volume is focused on knee replacement, with 70 verified procedures. Some surgeons choose to concentrate on a single joint type to build deep procedural expertise.
Are there other orthopedic surgeons near Dr. Hammond 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. Hammond 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. Hammond's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 70 procedures shown here.
Has Dr. Hammond's procedure volume changed over time?
Yes. Dr. Hammond's Medicare-recorded volume has increased from 29 procedures in 2013 to 70 in the most recent data, a 141% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 70 procedures in 2024.
Which hospitals is Dr. Hammond affiliated with?
According to CMS facility affiliation data, Dr. Hammond is affiliated with Medstar Union Memorial Hospital.
How does Dr. Hammond compare to other orthopedic surgeons in Baltimore?
Among the 41 orthopedic surgeons in Baltimore, Dr. Hammond ranks #15 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. Hammond practices?
Medstar Union Memorial Hospital (5 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. Hammond's 70 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.