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Specialist in Ukiah, CA
NPI: 1255427050Primary Employer
Redwood Orthopaedic Surgery Associates AMC
redwoodorthopaedic.com
HQ Phone
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Get Started for Freearrow_outwardCA State Medical License
1993 - 2026
IL State Medical License
1992 - 1993
CA State Medical License

American Board of Orthopaedic Surgery
Orthopaedic Surgery
University of North Carolina Hospitals
Residency • Orthopaedic Surgery
1987 - 1992
David Geffen School of Medicine at UCLA
medschool.ucla.edu
Medical School
Until 1987
Robotic Versus Manual Total Knee Arthroplasty in High Volume Surgeons: A Comparison of Cost and Quality Metrics.
Authors: Geoffrey S Tompkins, Katie S Sypher, Hsin-Fang Li, T Michael Griffin, Paul J Duwelius
Publication Date: 2022-08
Can a Reduction in Revision Rates Make Robotic TKA Cost Neutral with Manual TKA at Ten Years Follow-Up? An Episode Cost Analysis.
Authors: Geoffrey S. Tompkins, Katie Sypher, Michael Griffin, Paul J. Duwelius
Publication Date: 2021-11
The Economic Impact of Lower Extremity Periprosthetic Fractures in a Large Hospital System.
Authors: James P Crutcher Jr, Geoffrey Tompkins, Genevieve Rollier, Katie Sypher, Rebecca Valderrama, Paul J Duwelius
Publication Date: 2022-07