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

Ramin Rabbani, MD, is a board-certified orthopedic surgeon with a subspecialty as a fellowship-trained spine surgeon. He provides comprehensive spine and orthopedic care to patients in Los Angeles at Rabbani Orthopedic Spine Institute in Marina del Rey, California.

At Rabbani Orthopedic Spine Institute, his patients have access to a full range of treatments for back pain, neck pain, herniated discs, sciatica, shoulder pain, knee pain, and other orthopedic and spine conditions. Dr. Rabbani is known for his expertise in microscopic and minimally invasive spine surgery, and his patients also benefit from cutting-edge therapies.

After graduating magna cum laude with a Bachelor of Science in physiological sciences from the University of California, Los Angeles, Dr. Rabbani earned his medical degree at the University of California San Diego School of Medicine, where he graduated in the top 15% of his class.

Dr. Rabbani then completed his orthopedic surgery residency at New York Medical College. As a resident, he trained at nationally-recognized hospitals including Westchester Medical Center, Saint Vincent’s Hospital, Hospital for Special Surgery, and NYU Hospital for Joint Diseases. He finished his training with a spine surgery fellowship at the prestigious Cedars-Sinai Institute for Spinal Disorders.

Board certified by the American Board of Orthopedic Surgery, Dr. Rabbani has completed research for various orthopedic and spine conditions.

Dr. Rabbani is in network for Cigna, Medicare, Aetna, Health Net, and Anthem Blue Cross.

ABOUT DR. THOMAS KREMEN

Thomas J. Kremen, MD is a board-certified orthopedic surgeon with advanced subspecialty training in Sports Medicine and Shoulder Surgery. He cares for patients of all activity levels—from professional athletes to individuals simply looking to stay active and pain-free.

Dr. Kremen has extensive experience as a team physician at the highest levels of sport. He has worked with organizations across the country and internationally, including Duke University Athletics, U.S. Men’s National Team Soccer, LA Galaxy, USA Basketball, and the U.S. Olympic Swimming Team. He currently serves as a team physician for UCLA Athletics, the South Bay Lakers, the Los Angeles Lakers, and the Los Angeles Chargers.

While he has helped elite athletes perform at their peak, Dr. Kremen brings that same level of care and attention to every patient he treats. His focus is simple: help you recover efficiently, restore function, and get back to the activities that matter most to you.

Dr. Kremen specializes in treating shoulder and knee injuries, as well as a wide range of sports-related and overuse conditions. He combines advanced surgical techniques with the latest evidence-based, non-surgical treatments to create individualized care plans. Just as importantly, he emphasizes injury prevention—helping patients reduce the risk of future problems.

In addition to his clinical work, Dr. Kremen is a federally funded clinician-scientist actively involved in research aimed at improving how soft tissues—such as tendons, ligaments, and cartilage—heal after injury. This work allows him to deliver elite care today while building the therapies of tomorrow—helping patients recover faster, perform better, and stay active longer.

Dr. Kremen earned his undergraduate degree from the University of California, Santa Barbara, where he was captain of the NCAA Division I men’s swimming team. He received his medical degree from the David Geffen School of Medicine at UCLA and completed his orthopedic surgery residency at UCLA. He then pursued advanced fellowship training in Sports Medicine and Shoulder Surgery at Duke University.

After several years helping build the orthopedic program at Cedars-Sinai Medical Center, Dr. Kremen returned to UCLA, where he is now a full-time faculty member.

He remains actively involved in advancing the field through research, publications, and national presentations, and maintains memberships in leading professional organizations, including the American Academy of Orthopaedic Surgeons, the Arthroscopy Association of North America, and the American Orthopaedic Society for Sports Medicine.

Dr. Kremen’s approach is straightforward: combine leading-edge expertise with thoughtful, individualized care to help every patient move better, feel better, and return to the life they enjoy.

Jonathan H. Koenig, MD, is a Board Certified, fellowship-trained orthopaedic surgeon at Los Angeles Pediatric Orthopaedics serving the Brentwood community on the Westside of Los Angeles. Though Dr. Koenig specializes in treating children and young adults, he’s happy to help any patient who still feels young at heart. 

Growing up on Long Island in the suburbs of New York City, Dr. Koenig was a tri-sport athlete who went on to play varsity lacrosse at Yale University in New Haven, Connecticut. He graduated from Yale with a degree in the history of science and medicine. He then returned to New York City to earn his medical degree at the Albert Einstein College of Medicine in the Bronx.  

Dr. Koenig completed a five-year orthopaedic surgery residency at Lenox Hill Hospital in Manhattan's Upper East Side — home of America’s first official sports medicine department. His training included rotations at world-leading institutions like Boston Children’s Hospital, R Adams Crowley Shock Trauma Center in Baltimore, Maryland, and Memorial Sloan Kettering Cancer Center in New York City. Dr. Koenig served as chief resident during his final year and completed a traveling fellowship at The Royal Children’s Hospital in Melbourne, Australia. 

Leaving New York City for sunny Southern California, Dr. Koenig finished a one-year fellowship in pediatric orthopedics and scoliosis surgery at the world-renowned Rady Children’s Hospital-San Diego. He’s honored to bring his wealth of knowledge and extensive experience to the Westside of Los Angeles, where he resides with his wife, Dani - a native Angeleno.  They enjoy spending time with their young daughter - Harlow, newborn son - Hudson, as well as their furst born - Woody, a golden retriever.

As a former athlete and orthopaedic patient himself, Dr. Koenig has a personal understanding of all aspects of the care he provides. From sports-related injuries like ACL tears or patella dislocations as well as broken bones or limb deformities and joint pains, he makes sure that every patient receives prompt, highly individualized treatment. He’s also happy to provide emergency care for traumatic injuries as they arise.

Welcome to the practice of William Sheppard, MD, MPH, in Santa Monica, California. As an expert orthopedic & neurological spine surgeon, I and my staff use our years of spine surgery experience to deliver lasting pain relief, improved mobility, and a better quality of life to our patients.

Our office is inside the UCLA Health Spine Center. Ample on-site parking is available, and we offer cutting-edge diagnostics, including X-rays, MRIs, and CT scans.

The collaborative treatment process we use emphasizes patient participation and feedback. Instead of making blanket treatment recommendations, we dedicate time to our patients, listening to their symptoms, concerns, and goals. We use that information to develop outcome-oriented treatment plans.

People from all over Los Angeles visit us for our spine expertise. We regularly diagnose and treat common back problems, including degenerative spinal disorders like scoliosis, spinal stenosis, and spinal disc herniation.

Rather than relying on open surgery, we primarily recommend minimally invasive surgery. This looks different for each patient, but I specialize in several techniques, including cervical spine surgery, cervical spine replacement, lumbar spine surgery, laminoplasty, robotic surgery, and endoscopic spine surgery.

Minimally invasive spine surgery provides various benefits. It requires less anesthesia, causes less blood loss, and uses smaller incisions that heal quickly. It allows patients to return to their lives quicker and risks significantly fewer complications.

Don’t let back or neck problems keep you from living your best life. Take the first step toward pain relief today. Call the practice of William Sheppard, MD, to schedule a new-patient appointment, or book your visit online.

Board-certified orthopedic surgeon Ramin Ganjianpour, MD, is the founder of North Valley Orthopedic Institute in Mission Hills and Tarzana, California. He treats the full range of orthopedic injuries and diseases, with special expertise in minimally invasive total joint replacement of the knee, shoulder, and hip.

Dr. Ganjianpour graduated magna cum laude from the Ohio State University College of Medicine in Columbus, Ohio, where he was a member of the Alpha Omega Alpha Honor Medical Society.

After an internship at the University of Southern California, Los Angeles County Medical Center, he finished his residency training in orthopedic surgery at the Albany Medical College, Albany Med Center, in Albany, New York. Then he completed a fellowship in total joint replacement and adult reconstruction at the Arthritis Institute in the Westlake neighborhood of Los Angeles. 

With a dedication to providing the best possible care, Dr. Ganjianpour is devoted to learning, keeping up with the latest orthopedic advances, and using them to improve his patients’ health. Dr. Ganjianpour is the chief of orthopedic surgery at Providence Holy Cross Medical Center in Mission Hills, California. 

Board-certified orthopedic surgeon Ramin Ganjianpour, MD, is the founder of North Valley Orthopedic Institute in Mission Hills and Tarzana, California. He treats the full range of orthopedic injuries and diseases, with special expertise in minimally invasive total joint replacement of the knee, shoulder, and hip.

Dr. Ganjianpour graduated magna cum laude from the Ohio State University College of Medicine in Columbus, Ohio, where he was a member of the Alpha Omega Alpha Honor Medical Society.

After an internship at the University of Southern California, Los Angeles County Medical Center, he finished his residency training in orthopedic surgery at the Albany Medical College, Albany Med Center, in Albany, New York. Then he completed a fellowship in total joint replacement and adult reconstruction at the Arthritis Institute in the Westlake neighborhood of Los Angeles. 

With a dedication to providing the best possible care, Dr. Ganjianpour is devoted to learning, keeping up with the latest orthopedic advances, and using them to improve his patients’ health. Dr. Ganjianpour is the chief of orthopedic surgery at Providence Holy Cross Medical Center in Mission Hills, California.