Dr. Derek Amanatullah, MD
Contact & Location
Stanford, CA 94305
Dr. Derek Amanatullah is a board-certified orthopedic surgeon practicing in Stanford, California. A Medicare provider since 2008, Dr. Amanatullah has performed 47 Medicare-verified knee replacements (#157 in California) and 32 hip replacements, for a combined total of 79 procedures.
In California, Dr. Amanatullah performs near average in knee (47 vs 47 avg), below average in hip (32 vs 41 avg).
Dr. Amanatullah's reported Medicare volume is split between knee replacements (47 cases) and hip replacements (32 cases).
Stanford is home to 19 orthopedic surgeons in the current Medicare dataset. Patients in the Stanford area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Medicare records for Dr. Amanatullah extend back to 2015, covering 10 years of data. Over that period, recorded procedure volume increased from 37 to 79 in the most recent data, a 114% increase. This sustained growth reflects an expanding joint replacement practice.
Among 6,599 knee replacement surgeons tracked nationally, Dr. Amanatullah's 47 verified procedures is near the national average of 45.
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. Amanatullah Compares
Procedure volume compared to the California state average.
Volume Trend Analysis
Dr. Amanatullah's Medicare-recorded procedure volume has trended upward over 10 years, increasing 114% from 37 procedures in 2015 to 79 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.
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 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. Amanatullah
How does Dr. Amanatullah's procedure volume compare to other California surgeons?
Dr. Amanatullah has performed 79 Medicare-verified joint replacement procedures. This is in line with the California average of 68 procedures per surgeon. Dr. Amanatullah ranks #164 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Amanatullah perform?
Dr. Amanatullah's Medicare data shows procedures in knee replacement (47 cases) and hip replacement (32 cases).
Are there other orthopedic surgeons near Dr. Amanatullah in Stanford?
Yes. There are 19 orthopedic surgeons in Stanford 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 California surgeons.
What does the Medicare data for Dr. Amanatullah 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. Amanatullah's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 79 procedures shown here.
Has Dr. Amanatullah's procedure volume changed over time?
Yes. Dr. Amanatullah's Medicare-recorded volume has increased from 37 procedures in 2015 to 79 in the most recent data, a 114% increase over 10 years. This upward trend suggests an expanding joint replacement practice. Peak volume was 79 procedures in 2024.
Does Dr. Amanatullah perform more than one type of joint replacement?
Yes. Dr. Amanatullah's Medicare data shows procedures in knee replacement (47 cases), hip replacement (32 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Amanatullah affiliated with?
According to CMS facility affiliation data, Dr. Amanatullah is affiliated with Stanford Health Care.
How does Dr. Amanatullah compare to other orthopedic surgeons in Stanford?
Among the 19 orthopedic surgeons in Stanford, Dr. Amanatullah ranks #7 by total Medicare procedure volume. The highest-volume surgeon in Stanford has 312 verified Medicare procedures.
What are the quality ratings for hospitals where Dr. Amanatullah practices?
Stanford Health Care (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 Stanford, California
Dr. Amanatullah's 79 Medicare procedures are below the Stanford average of 157. The table below compares verified procedure volumes for orthopedic surgeons practicing in Stanford.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Robert Mayle | 312 | Hip, Knee |
| Dr. Matthew Miller | 196 | Hip, Knee |
| Dr. Bradley Crow | 183 | Hip, Knee |
| Dr. James Huddleston | 152 | Hip, Knee |
| Dr. Holly Haight | 89 | Hip, Knee |
| Dr. Emilie Cheung | 85 | Shoulder |
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.