California Orthopedic Institute

California Orthopedic & Microsurgery Institute is a private orthopedic and microsurgery medical practice in Southern California focused on surgical and non-surgical care for bone, joint, muscle, and nerve conditions. The organization states that it was established in 2005 and operates as a comprehensive "one-stop" treatment facility with services spanning hand and microsurgery, peripheral nerve repair, fracture and trauma care, shoulder and elbow surgery, and broader orthopedic treatment. The practice is led by founder Dr. Gary Y. Chen and has operated under both the COMSI and California Orthopedic Institute/COI names. Rather than a drug-development biotech company, it is a healthcare delivery organization providing clinical orthopedic services through multiple California locations.