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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.

About Andrew Bulczynski

Andrew Bulczynski, MD, is a board-certified sports medicine orthopedic surgeon and founder of the surgery practice that bears his name in Marina del Rey, California. He has been a practicing physician for nearly 20 years.

A graduate of Northwestern University’s Feinberg School of Medicine, Dr. Bulczynski earned his doctorate in medicine in 1999. Always interested in orthopedic medicine, he went on to receive special orthopedic surgery training during his residency at Loyola University Medical Center in Chicago.

Since completing his residency in 2004, Dr. Bulczynski has been fellowship trained in both sports medicine and orthopedic surgery, which he received from Lake Tahoe Orthopaedic Institute, treating patients of all ages — including more than 65 Olympic gold and silver medalists, Red Bull athletes, and other sports professionals.

As a sports medicine specialist, Dr. Bulczynski crafts individualized treatment plans that typically involve a combination of at-home remedies; physical therapy; revolutionary injection methods such as stem cell therapy and platelet-rich plasma (PRP) therapy; and minimally invasive surgical procedures.

Dr. Bulczynski’s goal is to return injured athletes to their peak performance levels while alleviating chronic pain and improving their range of mobility.

Depending on the condition at hand, Dr. Bulczynski may recommend anti-inflammatory medication, therapeutic exercises and stretches, injection therapy, and more. He tailors each treatment plan to his patients, ensuring that his recommendations suit each patient’s lifestyle and goals.

Above all else, Dr. Bulczynski sets his practice apart from the rest by educating and informing patients of their treatment options and recovery outlook every step of the way. This ensures that athletes and chronic pain patients alike have realistic, positive expectations for their recovery.

Robert H. Cho, MD, FAAOS, FAOA, is a board-certified and fellowship-trained orthopaedic surgeon with a subspecialty in pediatric orthopedics, scoliosis, and complex spine surgery. He sees patients at his private practice, which has locations in Beverly Hills and the Sawtelle neighborhood of Los Angeles, California.

Dr. Cho is a world-renowned expert on pediatric orthopedics and spinal surgery. Dr. Cho is the only surgeon in the Greater Los Angeles region who performs motion-preserving anterior vertebral body tethering for scoliosis correction.

He graduated from Cornell University with honors in 2000 with a degree in chemistry and minors in biochemistry and Near Eastern studies. He went to medical school and residency at Drexel University College of Medicine in Philadelphia, Pennsylvania. He completed his fellowship in 2010 in pediatric orthopedics and scoliosis at Rady Children's Hospital, San Diego.

Dr. Cho then took on a staff position at Shriners Children's Southern California as a pediatric orthopedic surgeon with a subspecialty in scoliosis and spinal surgery. He became Chief of Staff in 2015 and led the medical center for a decade, with a subsequent leadership role in the Shriners Children's Medical Group. He left Shriners in 2025 to start his own practice in the Greater Los Angeles area.  

Dr. Cho has presented papers, posters, and presentations all over the world. Dr. Cho was invited to deliver the inaugural lecture at the 2015 American Academy of Orthopedic Surgeons meeting as part of the symposium Orthopedic Surgery in the Digital Age: Using Social Media and the Internet to Improve Patient Care and Grow Your Practice.

He is also involved in healthcare advocacy – he was an invited member to the National Orthopedic Leadership Conference in Washington, DC, to discuss the state of healthcare and orthopedic surgery with the United States Congress. He recently served on the Board of Directors of the Pediatric Orthopaedic Society of North America as the Communications Council Chair. He was also selected for the prestigious Scoliosis Research Society Dawson Traveling Fellowship in 2024. He serves on the editorial boards for many medical journals, including Journal of Pediatric Orthopaedics, Spine, and Spine Deformity Journal. He is the section editor for pediatric spine conditions for the American Academy of Orthopaedic Surgeons Resident Orthopaedic Clinical Knowledge textbook and he authored the chapter on adolescent idiopathic scoliosis for the Orthopedic Knowledge Update textbook.

Dr. Cho believes that every patient deserves individualized care, regardless of their medical challenge. Innovation is key to his practice, and he has also helped to design many implants, instruments, and robotic devices to help children with scoliosis and spinal deformity. He helped to pioneer a method to decrease pain in surgical patients by developing a novel preoperative pain protocol that minimizes the use of narcotics.

Dr. Cho lives in Los Angeles with his wife, their two daughters, and his rescue dog, Sticky Rice. He enjoys playing the guitar, cars, smoking meats, playing video games with his children, exploring new restaurants, and traveling.

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.

Dean Matsuda, MD is a board-certified orthopedic surgeon and one of the top hip arthroscopy specialists in the world. His practice at Premier Hip Arthroscopy in Marina Del Rey, California, is fully dedicated to arthroscopic surgeries of the hip and pelvis. Not only does Dr. Matsuda treat patients throughout the Los Angeles region, his two convenient Locations near Los Angeles International Airport (LAX) enables easy access for his national and international patients.

Dr. Matsuda uses his extensive 30+ years of experience and surgical skills to perform state-of-the-art minimally invasive procedures to help get his patients back to their active lifestyles, whether professional athlete or weekend warrior.

Dr. Matsuda has developed many innovative surgeries and instruments that have changed the way minimally invasive hip surgery is performed worldwide. He has authored the multimedia instructional program on Hip Arthroscopy for the American Academy of Orthopaedic Surgeons (AAOS), teaches and performs surgical demonstrations at top national and international venues, and is a prolific researcher and senior member of the MASH Hip Arthroscopy national study group.

Dr. Matsuda obtained his medical degree at the University of California at Davis, earning top Alpha Omega Alpha honors. He completed his internship and orthopedic surgical residency at the prestigious Harbor-UCLA Medical Center in Los Angeles.

He is an active member of the AAOS, where he was chairman of Sports Medicine, and now serves on the AAOS Hip committee. He is an educational committee member for the International Society for Hip Arthroscopy (ISHA) and is on the editorial board of Orthopedics Today, the largest orthopedic newspaper. He also teaches regularly as a member of the Arthroscopy Association of North America and the Western Orthopaedic Association.

Dr. Matsuda has volunteered for over 25 years with Orthopaedics Overseas, is the Director of their Travelling Fellowship Program, and also volunteers with the Alliance of Jamaican and American Humanitarians (AOJAH).

As a former football running back, Dr. Matsuda understands the goals and unique needs of the athlete. Moreover, he enjoys running, golf, surfing, and spear fishing which keeps him in synch with his active patients. Dr. Matsuda has experience from both sides of the scalpel, having had hip arthroscopies for both of his own hips. This gives him a truly unique insight into what his patients experience which is exceeded only by his skills and compassion as a world-renowned hip surgeon.

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. 

Considered one of the top physicians in his field, Dr. Steve Mora is a board-certified, fellowship-trained orthopedic surgeon specializing in sports related trauma, knee, shoulder and arthroscopic treatment of the hip and the elbow.  He has a passion for treating and preventing injuries related to mixed martial arts and soccer. Dr. Mora has unique perspective on orthopedic surgery, having suffered from serious orthopedic injury himself that required multiple surgeries and a lengthy recovery time. He knows on a personal level what his patients are going through both physically and emotionally.

Although he has extensive surgical training, Dr. Mora takes a generally conservative, patient-tailored treatment approach, offering non-operative options wherever possible. However, when surgery is necessary, his patients can rest assured that it will be handled with leading-edge technology.

Because of his expertise, Dr. Mora is a frequent lecturer on sports injuries, and has been published extensively on sport injury related topics. He is a member of the Arthroscopy Association of North America (AANA) and the American Academy of Orthopedic Surgeons. Dr. Mora speaks fluent Spanish and is the team doctor for the Pro soccer team the Anaheim Bolts, Foothill High School, and Professional UFC fighters.

For more info go to www.myorthodoc.com 

Specialty

• Orthopedic Knee and Shoulder Specialist
• Knee, Elbow and Hip Arthroscopy

Subspecialty

• Sport Medicine
• Cartilage Restoration

Special Expertise

• Complex Knee and Shoulder Reconstruction
• Partial Knee Replacement
• Complex Cartilage Injuries of the Knee
• Sports-Related Trauma
• Arthritis

Procedures and Services:

Arthroscopic Shoulder Surgery for:

– Rotator Cuff Tendon Tears including revision repair for failed Rotator Cuff Repair

– Rotator Cuff Tendon Impingement and Bursitis

– Rotator Cuff Calcium Deposits aka Calcific Tendinitis

– Shoulder Instability (Dislocations) and Labral Tears

– Shoulder Joint Arthritis and Loose Bodies

– Shoulder Joint Stiffness (Frozen Shoulder/ Adhesive Capsulitis)

– Acromio-Clavicular (AC joint) Arthritis and Pain

– Biceps Tendonitis and Tears

– Complications Resulting from Prior Shoulder Surgery 

Open Shoulder Surgery for:

– Total Shoulder Arthroplasty/ Replacement

– Partial Shoulder Replacement/ Hemi-Arthroplasty

– Shoulder Instability with Bone Loss or for failed arthroscopic repair

– Acromio-Clavicular (AC joint) Separation/ Dislocation

– Proximal Humerus Fractures

– Clavicle Fractures

– Pectoralis Major Muscle Rupture

– Acute Proximal Biceps Ruptures 

Arthroscopic Knee Surgery for:

– Meniscus Tear Repair or Excision

– Articular Cartilage Damage/ Chondromalacia

– Stiffness/ Catching After Total Knee Arthroplasty

– Patellar Pain

– Loose Bodies
 Synovitis

Open Knee Surgery for:

– Patellar Dislocation/ Subluxation (MPFL Reconstruction)

– Torn Patellar & Quadriceps Tendons

– Reconstruction of Collateral Ligament Instability

– Persistent Bursitis

– Cartilage Resurfacing including Genzyme, OATS, Fresh Allograft, Meniscus – Transplantation 

Elbow Arthroscopic and Open Procedures:

– Fractures including olecranon, radial head and coronoid fractures

– Elbow Stiffness due to arthritis and trauma

– Lateral Epicondylitis

– Persistent Bursitis

Hip Arthroscopy for the treatment of labral tears, impingement and loose bodies

Treatment of most fractures including ankle, forearm, tibia and wrist

Non-Operative Orthopedic Procedures include Platelet Rich Plasma (PRP) and Bone Marrow Derived Adult Mesenchymal Stem Cell injections and Hyaluronic Acid Injections for the treatment of sports injuries and arthritis.

Education

University of California Irvine (UCI) School of Medicine

• Finished top of his class, earing the coveted Alpha Omega Alpha National Medical Honor Society

Residency

University of Southern California (USC/LAC) Medical Center

• Gained extensive experience taking care of high energy trauma and complex fractures

Fellowship

Santa Monica Orthopedic Surgery and Sports Medicine Group

• Sports arthroscopy, shoulder, knee and cartilage

Message from Dr. Mora

"I hope to create a close patient-doctor relationship based on trust and mutual respect. I believe my patients’ medical treatment begins with their complete understanding of their condition, and I promise to do my very best to understand the cause of your pain and then provide a treatment approach that is tailored to meet your specific needs.

I believe that my success in diagnosing and treating orthopedic problems was borne out of my own personal traumatic injury to my legs. While living in Peru, I was struck by a commuter bus, severely injuring my legs and forever changing my life. I have experienced many of the same surgeries that I now perform on my own patients — and I believe this experience has allowed me to be more in tune with my patients’ concerns, symptoms and experiences.

My family heritage is Peruvian and I speak fluent Spanish."

Navid Ghalambor, MD, is a Board Certified Orthopaedic Surgeon specializing in shoulder, elbow and wrist surgeries, with special emphasis on the treatment of shoulder and elbow conditions.
​He received his medical degree from the University of Southern California - Keck School of Medicine.
​
He subsequently completed his orthopaedic surgery residency training at the University of Southern California – Los Angeles County Medical Center. Dr. Ghalambor underwent fellowship training in shoulder arthroscopy and reconstruction at the renowned Harvard Shoulder Program at the Massachusetts General Hospital and the Brigham and Woman’s Hospital in Boston. He also underwent an adult arthritis and reconstruction fellowship at the UCLA/Orthopaedic Hospital in Los Angeles.

​Dr. Navid Ghalambor was awarded the graduate research fellowship during his medical school training at USC. During his orthopaedic surgery training at USC, he was chosen by the faculty to be a chief resident of the program, which was one of the largest orthopaedic residencies in the country. Dr. Ghalambor has served as an Assistant Clinical Professor of orthopaedic surgery at USC for 12 years and during this time he has been involved in the training of orthopaedic surgery residents at the USC Sports Service. He has also served as an instructor of orthopaedic surgery at the Harvard Orthopaedic Surgery Program.

​Dr. Ghalambor has published numerous articles in peer reviewed orthopaedic surgery journals including articles on shoulder arthroplasty, instability and stiffness. He has given numerous local and national presentations including those at the annual meetings of the American Academy of Orthopaedic Surgeons.
His research has been presented at international orthopaedic surgery meetings. Dr. Ghalambor is a member of the American Academy of Orthopaedic Surgeons, California Orthopaedic Association, Codman Shoulder Society, and Southern California Society for Surgery of the Hand. He has been voted as being one of the “top doctors” in Orange County by Orange Coast Magazine and Orange County Medical Association. Dr. Ghalambor has also been chosen as one of the Southern California’s top doctors by Castle Connolly Medical, LTD.

​​Dr. Ghalambor enjoys trail running and hiking. One of his most memorable sports experiences was being the head coach of his son’s AYSO soccer team for 4 years and leading his BU10 Team to local and regional finals. In his spare time, he enjoys traveling and oil painting.

Click to view Dr. Ghalambor's website

Gregory Carlson, MD, of Restore Orthopedics and Spine Center in Orange, California, is a board-certified orthopedic surgeon with subspecialty training in spine surgery. He specializes in minimally invasive spinal surgery for rapid recovery, including diagnosis and repair of previously failed spinal surgeries, revision surgery, and artificial disc replacement and other motion preservation techniques. He also performs microsurgical procedures for herniated discs, spinal stenosis, and other neurocompressive problems.

After completing his Bachelor of Arts Degree in Biology at Southern University in Collegedale, Tennessee, Dr. Carlson attended medical school in California, at Loma Linda University, graduating with Alpha Omega Alpha honors. He did his residency and first year of spine fellowship at the University of California, San Diego, and then finished a second spine fellowship at Case Western Reserve University in Cleveland.

Dr. Carlson has published numerous scientific articles on both basic science and clinical topics, and lectures extensively on spinal reconstructive topics. He continues to teach residents and orthopedic surgeons both locally and abroad. Dr. Carlson is also a Clinical Assistant Professor of Orthopedics at the University of California, Irvine.

Dr. Carlson serves on the editorial advisory boards for Spine and The Journal of Bone & Joint Surgery and regularly provides peer review services for scholarly articles that have been submitted for publication. He has received research funding for clinical and basic research projects resulting in award-winning paper presentations at a number of spine society meetings.

He is a member of the American Academy of Orthopedic Surgeons, the California Orthopedic Association, the Orange County Medical Association, the American Orthopedic Association, and the Cervical Spine Research Society.