Dr. Daniel Terpstra, D.O.
Contact & Location
Bethlehem, PA 18017
Dr. Daniel Terpstra is a board-certified orthopedic surgeon practicing in Bethlehem, Pennsylvania. A Medicare provider since 2007, Dr. Terpstra has performed 27 Medicare-verified knee replacements (#185 in Pennsylvania) and 24 shoulder replacements, for a combined total of 51 procedures.
In Pennsylvania, Dr. Terpstra performs below average in knee (27 vs 47 avg), near average in shoulder (24 vs 28 avg).
Dr. Terpstra's reported Medicare volume is split between knee replacements (27 cases) and shoulder replacements (24 cases).
Bethlehem is home to 18 orthopedic surgeons in the current Medicare dataset. Patients in the Bethlehem area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Terpstra extend back to 2013, covering 12 years of data. Over that period, recorded procedure volume increased from 11 to 51 in the most recent data, a 364% increase. This sustained growth reflects an expanding joint replacement practice.
Dr. Terpstra's 27 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)
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. Terpstra Compares
Procedure volume compared to the Pennsylvania state average.
Volume Trend Analysis
Dr. Terpstra's Medicare-recorded procedure volume has trended upward over 12 years, increasing 364% from 11 procedures in 2013 to 51 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. Terpstra
How does Dr. Terpstra's procedure volume compare to other Pennsylvania surgeons?
Dr. Terpstra has performed 51 Medicare-verified joint replacement procedures. The Pennsylvania average is 66 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Terpstra ranks #170 out of 376 orthopedic surgeons in Pennsylvania.
What types of joint replacement does Dr. Terpstra perform?
Dr. Terpstra's Medicare data shows procedures in knee replacement (27 cases) and shoulder replacement (24 cases).
Are there other orthopedic surgeons near Dr. Terpstra in Bethlehem?
Yes. There are 18 orthopedic surgeons in Bethlehem 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 Pennsylvania surgeons.
What does the Medicare data for Dr. Terpstra 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. Terpstra's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 51 procedures shown here.
Has Dr. Terpstra's procedure volume changed over time?
Yes. Dr. Terpstra's Medicare-recorded volume has increased from 11 procedures in 2013 to 51 in the most recent data, a 364% increase over 12 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 51 procedures in 2024.
Does Dr. Terpstra perform more than one type of joint replacement?
Yes. Dr. Terpstra's Medicare data shows procedures in knee replacement (27 cases), shoulder replacement (24 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Terpstra affiliated with?
According to CMS facility affiliation data, Dr. Terpstra is affiliated with Lehigh Valley Hospital, Lehigh Valley Hospital - Pocono.
How does Dr. Terpstra compare to other orthopedic surgeons in Bethlehem?
Among the 18 orthopedic surgeons in Bethlehem, Dr. Terpstra ranks #8 by total Medicare procedure volume. The highest-volume surgeon in Bethlehem has 258 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Terpstra practices?
Lehigh Valley Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Lehigh Valley Hospital - Pocono (3 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 Bethlehem, Pennsylvania
Dr. Terpstra's 51 Medicare procedures are below the Bethlehem average of 121. The table below compares verified procedure volumes for orthopedic surgeons practicing in Bethlehem.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Thomas Meade | 258 | Knee |
| Dr. Patrick Brogle | 159 | Hip, Knee |
| Dr. Christopher Ferrante | 139 | Hip, Knee |
| Dr. Chinenye Nwachuku | 116 | Hip, Knee |
| Dr. Andrew Konopitski | 66 | Hip, Knee |
| Dr. Wayne Luchetti | 61 | 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.