Dr. Jaharris Collier, MD
Contact & Location
866-974-2673
Sun City, AZ 85351
Sun City West, AZ 85375
Phoenix, AZ 85037
Sun City, AZ 85351
Phoenix, AZ 85023
Dr. Collier performs more knee replacement procedures than 58% of orthopedic surgeons in Arizona, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #63 of 152 ranked knee surgeons in Arizona.
About Dr. Collier
Dr. Jaharris Collier is a board-certified orthopedic surgeon practicing in Sun City, Arizona. A Medicare provider since 2016, Dr. Collier performed 42 Medicare-verified knee replacements (#63 in Arizona) and 15 hip replacements in the latest annual CMS data, for a combined total of 57 procedures.
In Arizona, Dr. Collier performs near the state average in knee (42 vs 49), below the state average in hip (15 vs 40).
Dr. Collier's reported Medicare volume is split between knee replacements (42 cases) and hip replacements (15 cases).
Beyond general orthopedic surgery, Dr. Collier holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.
Sun City is home to 2 orthopedic surgeons in the current Medicare dataset. Patients in the Sun City area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.
Dr. Collier first appears in the Medicare dataset in 2023. With 2 years of recorded data, the longitudinal trend is still developing.
Among 6,612 knee replacement surgeons tracked nationally, Dr. Collier's 42 verified procedures is near the national average of 45.
Verified Case Volume
Verified Medicare data is available for 2 years: 44 procedures in 2023 and 57 procedures in the most recent reporting year. A multi-year trend chart is shown once at least 3 years of data are available.
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. Collier Compares
Procedure volume compared to the Arizona state average.
Volume Trend Analysis
Dr. Collier has 2 years of Medicare procedure data beginning in 2023. Additional years of data will provide a clearer picture of volume trends.
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. Collier
How does Dr. Collier's procedure volume compare to other Arizona surgeons?
Dr. Collier has performed 57 Medicare-verified joint replacement procedures. The Arizona average is 72 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Collier ranks #95 out of 191 orthopedic surgeons in Arizona.
What types of joint replacement does Dr. Collier perform?
Dr. Collier's Medicare data shows procedures in knee replacement (42 cases) and hip replacement (15 cases).
Are there other orthopedic surgeons near Dr. Collier in Sun City?
Yes. There are 2 orthopedic surgeons in Sun City 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 Arizona surgeons.
What does the Medicare data for Dr. Collier 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. Collier's total volume across all insurers at roughly 200 to 240 procedures against the 57 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.
Does Dr. Collier perform more than one type of joint replacement?
Yes. Dr. Collier's Medicare data shows procedures in knee replacement (42 cases), hip replacement (15 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Collier affiliated with?
According to CMS facility affiliation data, Dr. Collier is affiliated with The Core Institute Specialty Hospital, Banner Estrella Medical Center.
What are the quality ratings for hospitals where Dr. Collier practices?
The Core Institute Specialty Hospital (hip/knee complication rate similar to national average); Banner Estrella Medical Center (3 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 Sun City, Arizona
Dr. Collier's 57 Medicare procedures are above the Sun City average of 45. The table below compares verified procedure volumes for orthopedic surgeons practicing in Sun City.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Theresa Pak | 33 | 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.