Project Description



Orthopedic Surgeon

Dr Semon Bader



  • Walnut Creek

  • Brentwood

  • Concord


“I enjoy building relationships with my patients and helping them regain function and maintain their quality of life, whether they are elite athletes, weekend warriors, or older adults.”


Can I See Dr Bader?

    2625 Shadelands Drive
    Walnut Creek CA 94598

  • Monday – Thursday
    8:00 AM – 5:00 PM

    8:00 AM – 4:00 PM

    1800 Sutter Street, Suite 100
    Concord CA 94520

  • Monday – Thursday
    8:00 AM – 5:00 PM

    8:00 AM – 4:00 PM

    350 John Muir Parkway
    Brentwood CA 94513

  • Monday – Thursday
    8:00 AM – 5:00 PM

    8:00 AM – 4:00 PM


With Dr Bader


About Dr Bader

Dr. Bader grew up in the Bay Area and attended the University of California, Davis, where he majored in neurobiology, physiology and behavior and graduated with the highest honors. Dr. Bader went on to complete medical school at the University of California, Davis, and completed his Orthopedic Residency at Harbor-UCLA Medical Center in Los Angeles.

Dr. Bader then completed a one-year fellowship in Sports Medicine, Knee, Shoulder and Hip Arthroscopy at the world-renowned Cleveland Clinic Foundation. While at the Cleveland Clinic, he gained extensive experience as a team physician for local high schools, club teams and Cleveland State University. He was also a member of the medical team for the Cleveland Indians, Cleveland Cavaliers, Cleveland Browns and the NFL Combine, gaining experience in the management and care of athletes at all levels.

After his fellowship, Dr. Bader returned with his wife and three children to settle in the East Bay area. For the past five years, he has served as Chief of Orthopedic Surgery at Contra Costa Regional Medical Center in Martinez. He has published numerous peer-reviewed articles and book chapters focused on joint preservation. He has presented at regional and national conferences on the treatment of knee disorders and ACL reconstruction. Dr. Bader brings an added skill in the management of hip disorders in young adults.

In his spare time Dr. Bader enjoys golfing, hiking, biking and spending time with his family.

  • Fellowship

    • Sports Medicine

      Cleveland Clinic Education Foundation,

  • Residency

    • Orthopedic Surgery

      Harbor/UCLA Medical Center,

  • Internship

    • Surgery

      University of California, San Francisco,

  • Medical School

    • Medical Degree

      University of California, Davis,

  • College

    • B.S. – Neurobiology, Physiology & Behavior

      University of California, Davis,

Assisting the Doctor:

Rick Nolley, PA-C

Physician Assistants are highly skilled medical professionals. Dr. Bader is joined by Rick Nolley, PA-C to provide the highest standard of care.

Reviews Mean So Much!

Reviews mean so much to both the doctor providing care as well as to prospective patients. We appreciate your reviews!

Both my surgeries were done by Dr Bader and he did a great job. He monitored my progress and ordered the appropriate physical therapy. He is very knowledgeable and takes great care of his patients.

- Luisa C

Doctor Bader has been my specialist for two separate problems, a frozen shoulder and a torn ACL. In both of these situations he has taken wonderful care of me.

- Matt & Jen F

In my opinion he has amazing surgical skills to have repaired my knee in which pretty much everything was completely torn. I’m so glad I found him when I needed him. Excellent doctor!

- Jackie M