Find a Top Orthopedic Surgeon Near Me in Irvine, CA – Book an Appointment Instantly

Brandon A. Ortega, MD, is a fellowship-trained orthopedic spine surgeon who provides comprehensive and personalized spinal care to adults in Torrance and Long Beach, California. His dedication to helping each patient regain mobility, reduce pain, and improve their quality of life has earned the respect of everyone in the community struggling with neck and back pain.

Dr. Ortega received his medical degree from the Keck School of Medicine at the University of Southern California (USC) in Los Angeles. He stayed at USC to complete his orthopedic surgery residency, where he served as chief resident.

He pursued specialized training in spine surgery, completing a fellowship at the prestigious University of California, Davis. During his fellowship training, he learned traditional, minimally invasive, and image-guided techniques for treating complex adult and pediatric spinal deformities.

Dr. Ortega specializes in diagnosing and treating all cervical (neck), thoracic (mid-back), and lumbar (lower back) conditions. His areas of interest include motion-preserving and minimally invasive surgery and using advanced technologies like navigation, robotics, and endoscopy to improve patient safety and outcomes.

He has published many peer-reviewed articles and textbook chapters and presented his research at national and international medical conferences. 

Taking a compassionate and patient-centered approach, Dr. Ortega believes in treating each patient as a person and tailoring treatment to meet their specific needs and goals. 

He creates treatment plans that integrate nonoperative interventions, including lifestyle and activity changes, physical therapy, occupational therapy, and pain management. His whole-person approach addresses each patient’s spine condition, optimizing conservative treatments and helping them avoid surgery whenever possible.

Dr. Ortega welcomes new patients and looks forward to providing ongoing care to his current patients, working with them to restore an active, healthy life.

About Dr. Unal

Berkay Unal, MD, is a fellowship-trained, board-certified orthopedic surgeon specializing in minimally invasive, arthroscopic surgery with an emphasis on shoulder and knee disorders, sports injuries, and arthritis. He treats patients at Samimi Orthopedic Group at its Los Angeles area offices in Brentwood, West Covina, and Sherman Oaks, California. 

Dr. Unal completed his undergraduate studies at The University of California, Berkeley, earning his bachelor’s degree in molecular and cell biology. Following his undergraduate studies, he held a research position at The University of California, Irvine, where he was involved in multiple

publications in molecular biology and infectious disease. 

Dr. Unal realized his true passion was medicine and direct patient care. He attended medical school at The University of Southern California (USC) in Los Angeles, receiving his medical degree in 2011. He completed his orthopedic surgery residency at The University of Southern California (USC) in Los Angeles. Dr. Unal did an additional year of subspecialty training in sports medicine and arthroscopy at The University of Kentucky's Orthopaedic Sports Medicine Fellowship in Lexington. 

Dr. Unal started his practice in Bakersfield, California, treating high-complexity injuries. He brings his experience and expertise to the Samimi Orthopaedic Group team. 

Dr. Unal believes in a non-surgical approach as the initial step in treating most orthopedic conditions. He believes in a personalized approach and takes pride in providing knowledge and guidance to ensure his patients feel comfortable and informed.

He is a member of the American Orthopedic Society for Sports Medicine, the American Academy of Orthopaedic Surgeons, and the American Medical Association.

Dr. Unal enjoys spending time with his wife and his two daughters, weight lifting, hiking, exploring nature, snowboarding, and a variety of recreational sports in his free time. He likes to maintain an active lifestyle and aims to help his patients do the same.

STEPAN KASIMIAN, M.D.

Stepan Kasimian, M.D., is an orthopaedic surgeon with specialty training in complex spinal reconstruction and minimally invasive spine surgery. His primary interests include degenerative spine disease and spinal deformity. He has extensive experience in treating multiple spine disorders including disc herniations, spinal stenosis, spondylolisthesis, kyphosis, scoliosis, tumors, and spinal trauma in the cervical, thoracic, and lumbar spine.

EDUCATION

Dr. Kasimian received his undergraduate degrees in Microbiology & Molecular Genetics and History from the University of California, Los Angeles. He completed his internship and residency in orthopaedic surgery at the Los Angeles County-USC Medical Center. After residency, Dr. Kasimian obtained further training in complex spinal reconstruction surgery at Cedars-Spinal Medical Center, Institute for Spinal Disorders.

RESEARCH

Dr. Kasimian has presented his research at the International Meeting on Advanced Spine Techniques and has written a chapter on endoscopic thoracic disc herniations in a prominent spine textbook.

PROFESSIONAL MEMBERSHIPS/AFFILIATIONS

He is a member of the American Medical Association, Alpha Omega Alpha Honor Society, North American Spine Society, and the American Academy of Orthopedic Surgeons. In order to better serve his patients, his practice is located in Beverly Hills, Glendale, and Rancho Cucamonga and he maintains privileges in numerous hospitals including Cedars-Sinai Medical Center and Glendale Adventist Medical Center.

Allan M. Delman, M.D., is an orthopedic surgeon who has been providing expert orthopedic care at his private practice in San Pedro, California, since 1983. His areas of specialty include orthopedic joint replacement surgery (hip, knee, and shoulder replacement), arthroscopic surgery of the knee, shoulder and ankle, sports medicine, spinal conditions, and general orthopedics including trauma.

Dr. Delman received a Bachelor of Arts from the State University of New York at Buffalo where he graduated Magna Cum Laude and was inducted into Phi Beta Kappa. He then earned his Doctor of Medicine from Albany Medical College of Union University in Albany, New York where he was inducted into the prestigious Alpha Omega Alpha honor medical society.

He then completed his internship at New York University/Bellevue Hospital in New York City before moving to Southern California for his residency training at UCLA Medical Center in Los Angeles. Following his residency, Dr. Delman returned to New York University to complete a one-year fellowship in spine surgery and spinal deformities and then moved back to California to open his practice in San Pedro.

Dr. Delman’s interest in orthopedic surgery began when he played Division I basketball and baseball while at SUNY Buffalo. When he’s not caring for his patients, Dr. Delman enjoys playing golf, exercising, traveling, and spending time with his family.

Dr. Kristofer J. Jones is a board certified, fellowship trained orthopaedic surgeon who specializes in sports-related musculoskeletal injuries of the knee, shoulder and elbow. As a former intercollegiate athlete, Dr. Jones understands the unique demands and concerns faced by athletes at all levels of participation (from professional to recreational) and his goal is to return patients back to their regular activities using evidence-based medicine to guide his treatment plan. He obtained his undergraduate degree from the University of Chicago, where he was a four-year letter winner and All-Conference tailback for the varsity football team. He was awarded the Howell-Murray Alumni Medal upon graduation. He received his medical degree from the University of Pennsylvania where he received the Jonathan Rhoads Prize for Surgical Scholarship. Dr. Jones completed his orthopaedic residency training at the prestigious Hospital for Special Surgery (HSS) in New York City, frequently recognized as the #1 Hospital for Orthopaedic Surgery by US News & World Report. He subsequently completed a traveling fellowship and acquired further expertise in shoulder and cartilage surgery at specialized centers across Europe, including Lyon & Paris France. Dr. Jones returned to HSS to complete another fellowship in Sports Medicine and Shoulder Surgery. During this time, he served as assistant team physician for the Brooklyn Nets (NBA), New York Red Bulls (MLS), and Iona College Athletics as well as an orthopaedic consultant to the United States Tennis Association (USTA) and US Open Tennis Tournament. He is currently the Head Team Physician and Director of Orthopaedic Surgery for the Los Angeles Lakers (NBA) and a Team Physician for the UCLA Bruins athletic teams.

Dr. Jones is accomplished in both clinical and laboratory research and has authored more than 100 scientific manuscripts and textbook chapters that have received national recognition and awards within the field of sports medicine. He is frequently invited to teach and lecture on these topics both nationally and internationally. Dr. Jones is a Fellow of the American Academy of Orthopedic Surgeons (AAOS), a diplomat of the American Board of Orthopaedic Surgery and has been recognized as an "Emerging Leader" within the field of orthopaedic surgery/sports medicine by the American Orthopaedic Association (AOA). He also holds memberships and committee positions in several professional organizations including the American Orthopedic Society for Sports Medicine (AOSSM), S.T.O.P (Sports Trauma and Overuse Prevention) Sports Injuries Outreach Committee, the Arthroscopy Association of North America (AANA), the International Cartilage Repair Society (ICRS), Orthopaedic Research Society (ORS), the NBA Team Physicians Society, and the NFL Musculoskeletal Injury Committee. He serves on the Board of Trustees for the Journal of Bone and Joint Surgery (Am). 

Dr. Jones currently provides care at the UCLA Orthopaedic Center in Westwood on the main hospital campus, as well as the UCLA Orthopaedic Center in Downtown Los Angeles. 

Brandon A. Ortega, MD, is a fellowship-trained orthopedic spine surgeon who provides comprehensive and personalized spinal care to adults in Torrance and Long Beach, California. His dedication to helping each patient regain mobility, reduce pain, and improve their quality of life has earned the respect of everyone in the community struggling with neck and back pain.

Dr. Ortega received his medical degree from the Keck School of Medicine at the University of Southern California (USC) in Los Angeles. He stayed at USC to complete his orthopedic surgery residency, where he served as chief resident.

He pursued specialized training in spine surgery, completing a fellowship at the prestigious University of California, Davis. During his fellowship training, he learned traditional, minimally invasive, and image-guided techniques for treating complex adult and pediatric spinal deformities.

Dr. Ortega specializes in diagnosing and treating all cervical (neck), thoracic (mid-back), and lumbar (lower back) conditions. His areas of interest include motion-preserving and minimally invasive surgery and using advanced technologies like navigation, robotics, and endoscopy to improve patient safety and outcomes.

He has published many peer-reviewed articles and textbook chapters and presented his research at national and international medical conferences. 

Taking a compassionate and patient-centered approach, Dr. Ortega believes in treating each patient as a person and tailoring treatment to meet their specific needs and goals. 

He creates treatment plans that integrate nonoperative interventions, including lifestyle and activity changes, physical therapy, occupational therapy, and pain management. His whole-person approach addresses each patient’s spine condition, optimizing conservative treatments and helping them avoid surgery whenever possible.

Dr. Ortega welcomes new patients and looks forward to providing ongoing care to his current patients, working with them to restore an active, healthy life.