Dr. Jason Lang, M.D.
Contact & Location
207-307-8902
Bangor, ME 04401
Dr. Lang performs more knee replacement procedures than 96% of orthopedic surgeons in Maine, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #1 of 26 ranked knee surgeons in Maine.
About Dr. Lang
Practice. Dr. Jason Lang is a board-certified orthopedic surgeon practicing in Bangor, Maine. The latest annual CMS data records 134 knee replacements and 109 hip replacements, 243 procedures in all. That is #1 in Maine for knee replacement. A Medicare provider since 2006.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume rose from 79 procedures a year to 243, up 208%.
National context. Among 6,612 knee replacement surgeons tracked nationally, 134 procedures is more than 2x the national average of 45.
Local context. Bangor has 6 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement |
|---|---|---|
| 2013 | 44 | 35 |
| 2014 | 40 | 41 |
| 2015 | 38 | 37 |
| 2016 | 37 | 31 |
| 2017 | 40 | 36 |
| 2018 | 49 | 60 |
| 2019 | 65 | 84 |
| 2020 | 70 | 75 |
| 2021 | 81 | 98 |
| 2022 | 66 | 99 |
| 2023 | 78 | 121 |
| 2024 | 109 | 134 |
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. Lang Compares
Procedure volume compared to the Maine state average.
Volume Trend Analysis
Dr. Lang's Medicare-recorded procedure volume has trended upward over 12 years, increasing 208% from 79 procedures in 2013 to 243 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.
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.
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. Lang
How does Dr. Lang's procedure volume compare to other Maine surgeons?
Dr. Lang has performed 243 Medicare-verified joint replacement procedures. This is more than 4x the Maine average of 52 procedures per surgeon. Dr. Lang ranks #1 out of 43 orthopedic surgeons in Maine.
What types of joint replacement does Dr. Lang perform?
Dr. Lang's Medicare data shows procedures in knee replacement (134 cases) and hip replacement (109 cases).
How experienced is Dr. Lang with knee replacement surgery?
Dr. Lang ranks #1 in Maine for knee replacement with 134 Medicare-verified procedures. This high ranking among 43 state surgeons indicates significant experience with this specific procedure.
Are there other orthopedic surgeons near Dr. Lang in Bangor?
Yes. There are 6 orthopedic surgeons in Bangor 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 Maine surgeons.
What does the Medicare data for Dr. Lang 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. Lang's total volume across all insurers at roughly 810 to 1,020 procedures against the 243 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. Lang's procedure volume changed over time?
Yes. Dr. Lang's Medicare-recorded volume has increased from 79 procedures in 2013 to 243 in the most recent data, a 208% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 243 procedures in 2024.
Does Dr. Lang perform more than one type of joint replacement?
Yes. Dr. Lang's Medicare data shows procedures in knee replacement (134 cases), hip replacement (109 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Lang affiliated with?
According to CMS facility affiliation data, Dr. Lang is affiliated with St Joseph Hospital, Northern Light Maine Coast Hospital, Northern Light Blue Hill Memorial Hospital, Mainehealth Waldo Hospital, Down East Community Hospital.
How does Dr. Lang compare to other orthopedic surgeons in Bangor?
Among the 6 orthopedic surgeons in Bangor, Dr. Lang ranks #1 by total Medicare procedure volume. Dr. Lang has the highest verified Medicare volume in the city.
What are the quality ratings for hospitals where Dr. Lang practices?
St Joseph Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Northern Light Maine Coast Hospital (2 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 Bangor, Maine
Dr. Lang's 243 Medicare procedures are above the Bangor average of 84. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bangor.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Antonios Tsismenakis | 76 | Hip, Knee |
| Dr. Jacob Brooks | 71 | Hip, Knee |
| Dr. Stephen Walsh | 64 | Hip, Knee |
| Dr. Jessica Aronowitz | 36 | Shoulder |
| Dr. Megan Richards | 15 | Hip |
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.