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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Gregory James Loren, M.D.

Name
Gregory James Loren, M.D.
Status
Active
Medical Group
CORE Orthopaedic Medical Center
City
Encinitas
Phone
760-943-6700
Subspecialty
Sports Medicine

Luke F. Bremner, M.D.

Name
Luke F. Bremner, M.D.
Status
Active
Medical Group
CORE Orthopaedic Medical Center
City
Encinitas
Phone
760-943-6700
Subspecialty
General

Nathan C Hammel, M.D.

Name
Nathan C Hammel, M.D.
Status
Active
Medical Group
CORE Orthopaedic Medical Center
City
Encinitas
Phone
619-532-8429
Subspecialty
General

Robert I. Gelb, M.D.

Name
Robert I. Gelb, M.D.
Status
Semi-Retired
Medical Group
CORE Orthopaedic Medical Center
City
Encinitas
Phone
760-943-6700
Subspecialty
Hand/Wrist

Ghassan S. Tooma, M.D.

Name
Ghassan S. Tooma, M.D.
Status
Active
Medical Group
Corona Temecula Orthopaedic Associates
City
Corona
Phone
951-735-6060

John S. Locke, M.D.

Name
John S. Locke, M.D.
Status
Active
Medical Group
Corona Temecula Orthopaedic Associates
City
Corona
Phone
951-735-6060
Subspecialty
Sports Medicine

Frederic G. Nicola, M.D.

Name
Frederic G. Nicola, M.D.
Status
Active
Medical Group
D.I.S.C.
City
Marina del Rey
Phone
310-574-0487
Subspecialty
General, Knee, Shoulder/Elbow, Sports Medicine, WC Treatment

Hamid Mir, M.D.

Name
Hamid Mir, M.D.
Status
Active
Medical Group
D.I.S.C.
City
Newport Beach
Phone
949-988-7848
Subspecialty
Spine, WC Medical-Legal, WC Treatment

Hooman Meir Melamed, M.D.

Name
Hooman Meir Melamed, M.D.
Status
Active
Medical Group
D.I.S.C.
City
Marina del Rey
Phone
310-574-0405
Subspecialty
Spine, Trauma, WC Treatment

Andrzej Bulczynski, M.D.

Name
Andrzej Bulczynski, M.D.
Status
Active
Medical Group
D.I.S.C. Sports and Spine Center
City
Marina del Rey
Phone
310-574-0383
Subspecialty
Arthritis, General, Knee, Shoulder/Elbow, Sports Medicine, Trauma, WC Medical-Legal, 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

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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