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
    • 2025 Annual Meeting/QME Course
    • Print CME Certificates
    • Future Meetings
    • Past Annual Meetings & QME Courses

COA Member Directory

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Tarek Bittar, M.D.

Name
Tarek Bittar, M.D.
Status
Active
City
Valencia
Phone
661-253-3399
Subspecialty
Sports Medicine

Joseph M. Centeno, M.D.

Name
Joseph M. Centeno, M.D.
Status
Active
Medical Group
Bay Area Orthopedics
City
Vallejo
Phone
707-645-7210
Subspecialty
Arthritis, Foot/Ankle, General, Hand/Wrist, Hip, Knee, Pediatrics, Shoulder/Elbow, Sports Medicine, Total Joint, Trauma, WC Treatment

Teodoro Nissen, M.D.

Name
Teodoro Nissen, M.D.
Status
Active
Medical Group
Bay Area Orthopedics
City
Vallejo
Phone
707-645-7210
Subspecialty
Arthritis, Foot/Ankle, General, Hand/Wrist, Hip, Knee, Shoulder/Elbow, Sports Medicine, Total Joint, Trauma, WC Medical-Legal, WC Treatment

Babak Barcohana, M.D.

Name
Babak Barcohana, M.D.
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Spine, WC Treatment

Carlos A. Guanche, M.D.

Name
Carlos A. Guanche, M.D.
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Knee, Shoulder/Elbow, Sports Medicine, WC Treatment

David M. Auerbach, M.D.

Name
David M. Auerbach, M.D.
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Hand/Wrist, Shoulder/Elbow, Trauma

Eric Ferkel, M.D.

Name
Eric Ferkel, M.D.
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Foot/Ankle, Sports Medicine, WC Medical-Legal, WC Treatment

Evan Vellios, M.D.

Name
Evan Vellios, M.D.
Status
Young Orthopedist
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Knee, Shoulder/Elbow, Sports Medicine, WC Treatment

Fadi Saied, DO

Name
Fadi Saied, DO
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Hip, Knee

Gregory J. Hanker, M.D.

Name
Gregory J. Hanker, M.D.
Status
Active
Medical Group
SCOI
City
Van Nuys
Phone
818-901-6600
Subspecialty
Hand/Wrist, Sports Medicine, WC Treatment
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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

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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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