California Orthopaedic Association

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  • Home
  • About COA
    • Origin & History
    • Mission
    • Bylaws
    • COA Board of Directors – Committee Chairs – Roster
    • Advertising
    • Staff
    • Contact/Forms
  • Membership
    • Join COA
    • Members
    • COA Member Directory
    • Member Discounts
    • Residents
    • Job Bank
    • Expense Form
  • Annual Meeting/QME Course
    • 2026 Annual Meeting/QME Course
    • Print CME Certificates
    • Future Meetings
    • Past Annual Meetings & QME Courses

COA Member Directory

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Michael W. Cluck, M.D.

Name
Michael W. Cluck, M.D.
Status
Active
Medical Group
Valley Spine Care
City
Merced
Phone
209-276-2200
Subspecialty
Spine

Bill W.B. Yeung, M.D.

Name
Bill W.B. Yeung, M.D.
Status
Semi-Retired
Medical Group
Valley View Medical
City
Corona Del Mar
Phone
714-562-8632
Subspecialty
General, WC Medical-Legal

Vatche Cabayan, M.D.

Name
Vatche Cabayan, M.D.
Status
Active
Medical Group
Vatche Cabayan Medical Corp.
City
Richmond
Phone
510-724-4586
Subspecialty
General, Hand/Wrist, Hip, Knee, Shoulder/Elbow, Sports Medicine, Total Joint, WC Medical-Legal, WC Treatment

Ali R. Motamedi, M.D.

Name
Ali R. Motamedi, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Camarillo
Phone
805-641-6415
Subspecialty
General, Sports Medicine

Andre Michael Ishak, M.D.

Name
Andre Michael Ishak, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Ventura
Phone
805-641-6415
Subspecialty
Hand/Wrist

Craig A. Zeman, M.D.

Name
Craig A. Zeman, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Oxnard
Phone
805-988-9366
Subspecialty
General

Daniel K. Davis, M.D.

Name
Daniel K. Davis, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Simi Valley
Phone
805-520-2663
Subspecialty
Sports Medicine

F. Ray Nickel, M.D.

Name
F. Ray Nickel, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Ventura
Phone
805-641-6415
Subspecialty
Foot/Ankle, Knee, Shoulder/Elbow, Sports Medicine, Trauma, WC Treatment

Gregg P. Hartman, M.D.

Name
Gregg P. Hartman, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Simi Valley
Phone
805-527-1404
Subspecialty
General

Jason Kent Hofer, M.D.

Name
Jason Kent Hofer, M.D.
Status
Active
Medical Group
Ventura Orthopedics
City
Ventura
Phone
805-641-6415
Subspecialty
General, Hip, Knee, Total Joint
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Annual Meeting/QME Course

2026 Annual Meeting
Hilton Santa Barbara Beachfront Resort
April 16 – 19, 2026

Upcoming COA Events

  • Thu
    16
    Apr
    2026
    Sun
    19
    Apr
    2026

    2026 Annual Meeting/QME Course

    Hilton Santa Barbara Beachfront Resort

Get in Touch With Us

California Orthopaedic Association
1246 P Street
Sacramento, CA 95814

Phone: 916-454-9884
Fax: 916-454-9882
Email: admin@coa.org

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