Dr. Christopher Katcherian, MD
Orthopedic Surgeon
10 Post
Irvine, CA 92618
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Availability last updated 04/03/2026
Dr. Christopher Katcherian, MD
Orthopedic Surgeon
10 Post
Irvine, CA 92618
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.
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.
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.
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.
Dr. Stepan Kasimian, MD
Orthopedic Surgeon
1183 East Foothill Blvd
Suite 255
Upland, CA 91786
Mehul Taylor, MD, is a board-certified orthopedic surgeon at Valley Orthopedic Institute in Palmdale and Ridgecrest, California. In addition to treating male and female patients of all ages who have general orthopedic issues, Dr. Taylor specializes in diagnosing and treating athletic injuries and arthroscopic surgeries.
Dr. Taylor has firm roots in Southern California, having grown up in the San Fernando Valley in Los Angeles County and graduated from Calabasas High School in Calabasas. Dr. Taylor earned his Bachelor of Science in physiological sciences at the University of California, Los Angeles (UCLA).
Dr. Taylor then earned his medical degree at Chicago Medical School in North Chicago, where he graduated with honors in 2002. He was also elected to the noted Alpha Omega Alpha medical honor society.
Next came an orthopedic residency at the Baylor College of Medicine in Houston, Texas, before Dr. Taylor traveled to Minnesota for the University of Minnesota’s sports medicine fellowship program. There, he received advanced training in arthroscopic surgery and served as an assistant team physician for the university’s football team.
Dr. Taylor is affiliated with two hospitals where he also treats patients: Antelope Valley Hospital in Lancaster and Palmdale Regional Medical Center in Palmdale.
Dr. Mehul Taylor, MD
Orthopedic Surgeon
647 West Avenue Q
Suites A - C
Palmdale, CA 93551
Anand Shah, MD, is a board-certified orthopedic surgeon and board-certified orthopedic hand surgeon and the owner of Valley Orthopedic Institute in Palmdale and Ridgecrest, California. In addition to treating patients of all ages with general orthopedic problems, Dr. Shah specializes in hand and upper extremity trauma and reconstruction.
Opening the doors to Valley Orthopedic Institute marked a homecoming for Dr. Shah, who went to Quartz Hill High School in Lancaster, California, which is just a few minutes away from Palmdale in the Antelope Valley.
Dr. Shah graduated from the University of California, San Diego with a Bachelor of Science in physiology and neuroscience. He excelled in earning his medical degree at Chicago Medical School in North Chicago in 2002, graduating first in his class and gaining election to the prestigious Alpha Omega Alpha medical honor society.
Next came an orthopedic residency at the University of Miami, Florida, and then Dr. Shah returned to UC San Diego for a fellowship program for hand, upper extremity, and microsurgery.
During his fellowship, Dr. Shah also contributed two chapters in a medical textbook, “Master’s Techniques in Orthopaedic Surgery – The Wrist,” one on hamate hook fractures and the other on radial styloidectomy.
Dr. Shah is affiliated with two hospitals where he also treats patients: Antelope Valley Hospital in Lancaster and Palmdale Regional Medical Center in Palmdale.
Dr. Anand Shah, md
Orthopedic Surgeon
647 West Avenue Q
Suites A - C
Palmdale, CA 93551
Mitchell McDowell, DO
Orthopedic Surgeon
818 Magnolia Avenue
Suite 202
Corona, CA 92879
Dr. Samuel W. Park is a board-certified orthpaedic surgeon who specializes in hip and knee arthroplasty. Dr. Park is a Harvard Fellowship-trained orthopaedic surgeon, and the first surgeon on the West Coast to utilize robotic technology for knee arthroplasties. The combination of Dr. Park's extensive surgical experience and innovative robotic resources ensures a higher recovery rate while minimizing post-operative infection reports. Dr. Park also serves as the Medical Director of the Joint Replacement Department at Providence Mission Hospital. Given his in-depth clinical knowledge and extensive surgical experience with robotic technology, he serves as a mentor to orthopaedic surgeons who wish to learn more about the use of robotics. Dr. Park averages approx. 600 surgeries per year, which include: Minimally invasive joint replacements Anterior total hip arthroplasties Partial knee replacements Total knee replacements
Dr. Samuel W. Park is a Southern California native and grew up in the city of La Canada Flintridge. When not in OR, you are most likely to find him outdoors, tracking down his lost golf balls or with a fishing pole in hand.
Dr. Samuel Park, MD
Orthopedic Surgeon
26730 Crown Valley Parkway
Suite 200
Mission Viejo, CA 92691
Dr. Eidt is a highly specialized, double board-certified orthopaedic surgeon with expertise in both Orthopaedic Sports Medicine and General Orthopaedic Surgery. He is an expert in treating sports-related injuries, particularly those involving complex shoulder, elbow, knee, and ankle conditions, with a focus on arthroscopic management.
He attended the military medical school, Uniformed Services University in Bethesda, MD, where he was elected to the national medical honor society, Alpha Omega Alpha (AOA). He earned his undergraduate degree in economics with a minor in chemistry from Skidmore College in Saratoga Springs, NY. Dr. Eidt served 16 years in the U.S. Army, providing care for both adult and pediatric patients with complex traumatic injuries. He was deployed multiple times, including a year stationed along the 38th parallel at the DMZ in South Korea. He also served in combat with the 173rd Airborne Division and the 2nd Forward Surgical Team (FST) at a forward operating base in Afghanistan, with additional assignments at military hospitals in Kandahar and Bagram. For his exceptional care of both military and civilian casualties under combat conditions, Dr. Eidt was awarded the Bronze Star.
After completing his military service, Dr. Eidt relocated with his family to Southern California and joined South Orange County Orthopaedics as a partner, where he continues to practice today. He was also one of the early contributors to the development of the orthopaedic sports medicine community in the region, helping to expand access to specialized care for athletes and active individuals. When he's not in clinic or the operating room, he serves as a consultant and team physician for St. Margaret's Episcopal School's lacrosse team and San Juan Hills High School football. Previously, he supported Trabuco Hills High School and JSerra Catholic High School in the same capacity. He has also served as team physician for the U.S. Army 2nd Infantry Division's wrestling tournaments, along with numerous other local and regional athletic events.
Dr. Herbert Eidt, MD
Orthopedic Surgeon
26730 Crown Valley Parkway
Suite 200
Mission Viejo, CA 92691
About
ALTA ORTHOPAEDICS
Serving the Santa Barbara community for over 30 years, Alta Orthopaedics is dedicated to getting patients back to active, healthy lifestyles and a better quality of life. With locations in Santa Barbara, Santa Maria, Solvang, and Oxnard, California, the team strives to return their patients to the lifestyle and any activities desired through their expertise in orthopaedic surgery, pain management, and sports medicine.
The multidisciplinary team of orthopaedists, physician assistants, and physical therapists provides modern, state-of-the-art care for nearly all orthopaedic problems, including deformities, injuries (fractures, as well as sprains and strains), and developmental and degenerative processes like arthritis.
The fellowship-trained orthopaedic surgeons are skilled in all aspects of spine surgery, interventional spine injections, sports medicine, hand and upper extremity conditions, shoulder replacements, hip and knee replacements, orthopaedic trauma and foot and ankle surgery.
Alta Orthopaedics employs the most contemporary and proven diagnostic and treatment techniques available. Diagnostically, their clinicians use in-house radiographs and ultrasound. Treatment options include injection therapy (viscosupplementation, amniotic fluid, bone marrow aspirate concentrate), physical therapy, and, when necessary, surgery (including microsurgery, arthroscopy, and minimally-invasive computer-navigated total joint replacement).
For the highest quality care and personalized treatment approaches, call any Alta Orthopaedics office, or book your appointment online today.
Victoria Lindsay, PA-C
Physician Assistant
1701 Solar Drive
Suite 190
Oxnard, CA 93030
Amit Nathani, MD, is a board-certified orthopedic surgeon at Alta Orthopedics with fellowship training in both sports medicine and shoulder surgery. He sees patients in Santa Barbara, Santa Maria, Solvang, and Oxnard California. Dr. Nathani is accepting new patients. Dr. Nathani was fellowship-trained at Stanford University, where he served as a team physician for the NFL's San Francisco 49ers.
Dr. Nathani specializes in injuries affecting the shoulder, elbow, hip, and knee, as well as general orthopedics and fracture care. He performs minimally invasive surgery (arthroscopy) and open surgery, including joint replacement of the shoulder. He is trained in the latest cartilage-restoring procedures, helping many avoid joint replacements. These advances include the use of biologic and FDA-approved regenerative cell therapies.
Dr. Nathani has published numerous peer-reviewed papers and textbooks on sports medicine injuries and treatment. His research includes anterior cruciate ligament (ACL) injuries, running injuries, rotator cuff tears, and hip injuries. He has lectured internationally and is an active member of several orthopedic societies that focus on improving care and outcomes for his patients.
Dr. Nathani holds privileges at several conveniently located hospitals. He accepts all types of patients, including those in professional sports, recreational athletes, and patients looking to resume a pain-free and active lifestyle. He prides himself on providing comprehensive and compassionate care and sees patients throughout their entire course of treatment, including overseeing their physical therapy and rehabilitation process. He believes in taking the time to explain a diagnosis properly and ensuring that patients leave the office fully understanding the treatment plan.
Dr. Nathani is a former Division I Tennis player and continues to enjoy golf and tennis recreationally. He is active in global humanitarian healthcare and donates time to surgical care for the underserved in Haiti and the Dominican Republic. He currently lives in Santa Barbara with his wife Isabella, three children, and two rescue dogs.
Dr. Amit Alexander-Nathani, MD
Orthopedic Surgeon
1701 Solar Drive
Suite 190
Oxnard, CA 93030