Nathan Hammel, MDChristopher Hajnik, MDJustin Chan, MDLuke Bremner, MDLouis Gilles, DPMColby Berger, DPMShiv Sab, MDMichelle Zhang, MDTiffany Guo, MDMark Schultzel, MD

Nathan Hammel, MD

Nathan Hammel, MD
Dr. Hammel is a general orthopaedic surgeon. He is committed to the highest level of surgical expertise and is able to provide comprehensive care for all orthopaedic patients. He has a particular interest in tumor care, joint replacement surgery, and fracture care. Dr. Hammel is recognized as a national lecturer regarding Orthopaedic Oncology and has…
Read more

Christopher Hajnik, MD

Christopher Hajnik, MD
Dr. Hajnik was raised on the Central Coast of California and earned his Bachelor of Science degree from the University of Notre Dame in 1994. During his senior year at Notre Dame, he was honored with “All-American” distinction while serving as captain of the NCAA National Champion fencing team. He continued his education at Notre…
Read more

Justin Chan, MD

Justin Chan, MD
Dr. Justin Chan was born and raised in Los Angeles, California. He attended the University of California, San Diego where he earned his Bachelor of Science degree in Biology, cum laude, and was elected to the Phi Beta Kappa National Honors Society. He stayed in San Diego to earn his Doctor of Medicine degree at…
Read more

Luke Bremner, MD

Luke Bremner, MD
“I chose medicine because of a sense of helplessness when my best friend developed cancer as a youth and desire to do something more in the future. I chose the military out of a sense of duty to my country. I chose to move on to the civilian world out of a sense of obligation…
Read more

Mark Schultzel, MD

Mark Schultzel, MD
Dr. Mark Schultzel is a board-certified orthopedic surgeon specializing in shoulder and elbow surgery. His practice focus is shoulder and elbow reconstruction (arthroplasty) arthroscopy and upper extremity sports medicine surgery. Dr. Schultzel received his medical degree at UC San Diego and completed his residency at UMKC. He completed a shoulder and elbow surgery fellowship at…
Read more