Dr. Daniel O'brien, M.D.
Contact & Location
Houston, TX 77065
Dr. Daniel O'brien is a board-certified orthopedic surgeon practicing in Houston, Texas. Dr. O'brien has performed 20 Medicare-verified hip replacements (#164 in Texas) and 11 knee replacements, for a combined total of 31 procedures.
In Texas, Dr. O'brien performs below average in hip (20 vs 31 avg), below average in knee (11 vs 42 avg).
Dr. O'brien's reported Medicare volume is split between hip replacements (20 cases) and knee replacements (11 cases).
Houston is home to 52 orthopedic surgeons in the current Medicare dataset. Patients in the Houston area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. O'brien first appears in the Medicare dataset in 2024. With 1 year of recorded data, the longitudinal trend is still developing.
Dr. O'brien's 20 hip replacement procedures is below the national average of 36 among 4,532 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. O'brien Compares
Procedure volume compared to the Texas state average.
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 Hip Replacement
If you are considering hip replacement surgery, these evidence-based guides can help you prepare and recover:
Understanding the progression from conservative treatments to surgical intervention, and how to determine when hip replacement becomes the right choice.
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.
Nutrition and Recovery After Joint ReplacementHow protein intake, anti-inflammatory foods, hydration, and targeted supplements support bone healing and tissue repair after surgery.
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.
Hip Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after hip replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full hip replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. O'brien
How does Dr. O'brien's procedure volume compare to other Texas surgeons?
Dr. O'brien has performed 31 Medicare-verified joint replacement procedures. The Texas average is 57 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. O'brien ranks #353 out of 582 orthopedic surgeons in Texas.
What types of joint replacement does Dr. O'brien perform?
Dr. O'brien's Medicare data shows procedures in hip replacement (20 cases) and knee replacement (11 cases).
Are there other orthopedic surgeons near Dr. O'brien in Houston?
Yes. There are 52 orthopedic surgeons in Houston 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 Texas surgeons.
What does the Medicare data for Dr. O'brien 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. O'brien's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 31 procedures shown here.
Does Dr. O'brien perform more than one type of joint replacement?
Yes. Dr. O'brien's Medicare data shows procedures in hip replacement (20 cases), knee replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. O'brien affiliated with?
According to CMS facility affiliation data, Dr. O'brien is affiliated with Houston Methodist West Hospital, Houston Methodist Hospital, Houston Methodist Cypress Hospital.
How does Dr. O'brien compare to other orthopedic surgeons in Houston?
Among the 52 orthopedic surgeons in Houston, Dr. O'brien ranks #36 by total Medicare procedure volume. The highest-volume surgeon in Houston has 340 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. O'brien practices?
Houston Methodist West Hospital (4 out of 5 CMS stars, hip/knee complication rate similar to national average); Houston Methodist 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 Houston, Texas
Dr. O'brien's 31 Medicare procedures are below the Houston average of 170. The table below compares verified procedure volumes for orthopedic surgeons practicing in Houston.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Stefan Kreuzer | 340 | Hip, Knee |
| Dr. Vasilios Mathews | 229 | Hip, Knee |
| Dr. Gregory Stocks | 168 | Hip, Knee |
| Dr. Robin Goytia | 153 | Hip, Knee |
| Dr. Ugonna Ihekweazu | 135 | Hip, Knee |
| Dr. Jay Croley | 133 | 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.