Dr. Tanner Harrah, D.O.
Contact & Location
909-599-0881
San Dimas, CA 91773
Miami, FL 33136
Dr. Harrah performs more knee replacement procedures than 34% of orthopedic surgeons in California, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #320 of 491 ranked knee surgeons in California.
About Dr. Harrah
Practice. Dr. Tanner Harrah is a board-certified orthopedic surgeon practicing in San Dimas, California. The latest annual CMS data records 23 knee replacements and 11 hip replacements, 34 procedures in all. That is #320 in California for knee replacement. A Medicare provider since 2016.
Trend. Dr. Harrah first appears in the Medicare data in 2024. With 1 year on record, the trend is still short.
National context. Among 6,612 knee replacement surgeons tracked nationally, 23 procedures is below the national average of 45. Medicare covers part of all joint replacements, so true volume is likely higher.
Verified Case Volume
Verified Medicare data is available for 1 year: 34 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. Harrah Compares
Procedure volume compared to the California 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 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.
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.
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.
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.
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. Harrah
How does Dr. Harrah's procedure volume compare to other California surgeons?
Dr. Harrah has performed 34 Medicare-verified joint replacement procedures. The California average is 68 procedures per surgeon. Medicare data captures roughly one-third of all joint replacements, so total volume may be higher. Dr. Harrah ranks #367 out of 613 orthopedic surgeons in California.
What types of joint replacement does Dr. Harrah perform?
Dr. Harrah's Medicare data shows procedures in knee replacement (23 cases) and hip replacement (11 cases).
Where is Dr. Harrah's practice located?
Dr. Harrah practices in San Dimas, California. The office is located at 1334 W Covina Blvd Ste 105, San Dimas, CA 91773. Patients in the surrounding area can consult Dr. Harrah for joint replacement evaluation.
What does the Medicare data for Dr. Harrah 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. Harrah's total volume across all insurers at roughly 120 to 140 procedures against the 34 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. Harrah perform more than one type of joint replacement?
Yes. Dr. Harrah's Medicare data shows procedures in knee replacement (23 cases), hip replacement (11 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.
Which hospitals is Dr. Harrah affiliated with?
According to CMS facility affiliation data, Dr. Harrah is affiliated with San Dimas Community Hospital, Casa Colina Hospital, Montclair Hospital Medical Center, Chino Valley Medical Center, Emanate Health Inter-Community Hospital.
What are the quality ratings for hospitals where Dr. Harrah practices?
San Dimas Community Hospital (1 out of 5 CMS stars, hip/knee complication rate similar to national average); Casa Colina Hospital (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Montclair Hospital Medical Center (3 out of 5 CMS stars). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
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.