The Medical Opinion Marketplace

Dr Mohan S Nair, MD, is a physician specializing in child and adolescent psychiatry, providing psychiatric evaluation and treatment for young people and their families. He earned his medical degree from Grant Government Medical College in India and completed residency training at Lehigh Valley Hospital. In addition to clinical care, Dr Nair has a professional focus in forensic psychiatry, offering expert consultation and evaluation services involving psychiatric and psychological questions. His stated areas of focus include traumatic brain injury, psychological trauma, and pain-related disorders in both pediatric and adult populations. Dr Nair is also associated with academic medicine and has been listed as faculty in Psychiatry at Western University of Health Sciences, reflecting a commitment to medical education and training. His professional activities include scholarly writing, with a published book review in the field of child and adolescent psychiatry. Across his work, Dr Nair emphasizes careful assessment, clear communication, and evidence-informed approaches tailored to the developmental needs of children and adolescents.

Dr. Amir Kazim, DDS, is a general dentist dedicated to delivering comprehensive, patient-centered care. Originally from Toronto, Canada, he brings broad clinical perspective shaped by professional experience across multiple states, including Washington and California. Dr. Kazim earned his Doctor of Dental Surgery degree from Howard University College of Dentistry and has continued to build a career that blends clinical excellence with service to the profession. Dr. Kazim is active in organized dentistry and leadership, serving as President of the Harbor Dental Society, a delegate to the California Dental Association, and a contributor to the American Dental Association Council on Communications. He also serves as a board member of the California Dental Association Foundation, reflecting a commitment to advancing access to oral health and supporting community-focused initiatives. With a strong interest in innovation, Dr. Kazim helped advance teledentistry through foundational task force work in Washington. He is also an adjunct faculty member at Cypress College and is recognized as a Fellow of the American College of Dentists, the International College of Dentists, and the Pierre Fauchard Academy.

Gareth W. Hammond, MD, is a board-certified orthopaedic surgeon with subspecialty certification in orthopaedic sports medicine. He provides comprehensive care for musculoskeletal injuries and conditions, with a clinical focus on sports medicine and upper-extremity problems involving the shoulder and elbow, including operative and nonoperative treatment options tailored to each patient’s goals and activity level. Dr. Hammond completed his medical degree at the Medical College of Georgia and went on to residency training in orthopaedic surgery at the University of California, Irvine. He then pursued advanced fellowship training in orthopaedic sports medicine with an emphasis on sports medicine and upper-extremity reconstruction at the University of Southern California. He is in private practice with Animas Orthopedic Associates and Sports Medicine and has served in hospital leadership roles, including participation on a surgical hospital board and prior service as chief medical officer. Dr. Hammond also supports community athletics through team physician roles. His academic contributions include peer-reviewed research in orthopaedic biomechanics and sports medicine, and he is a Fellow of the American Academy of Orthopaedic Surgeons.

Brandon A. Ortega, MD, is a fellowship-trained orthopedic spine surgeon specializing in the evaluation and treatment of cervical, thoracic, and lumbar spine conditions. He partners with patients to develop individualized care plans that may include non-operative strategies as well as surgical options when appropriate. Dr. Ortega earned his medical degree from the Keck School of Medicine of the University of Southern California. He completed his orthopaedic surgery residency at USC/LAC+USC Medical Center, serving in a chief resident leadership role, and then pursued advanced fellowship training in spine surgery at UC Davis Medical Center. Board certified in Orthopaedic Surgery, Dr. Ortega’s clinical interests include degenerative spine conditions, spinal deformity correction, and spinal metastatic disease. He is also interested in motion-preserving and minimally invasive approaches and in the thoughtful use of advanced technologies such as navigation, robotics, and endoscopy to support safety and outcomes. In addition to his clinical practice, Dr. Ortega has contributed to peer-reviewed publications and textbook chapters and has presented research at national and international conferences. He is a member of the North American Spine Society and AO Spine North America. He speaks English and Spanish.

Shahryar Ahmadi, M.D., is an orthopaedic surgeon specializing in shoulder and elbow surgery, with expertise in arthroscopy and complex reconstruction. He cares for patients with a broad range of upper-extremity conditions, including degenerative problems, sports-related injuries, and upper-extremity trauma and fractures. Dr. Ahmadi earned his medical degree from Tehran University of Medical Sciences. He completed an orthopaedic surgery residency at the University of Toronto, followed by advanced fellowship training in shoulder and elbow surgery at Mayo Clinic in Rochester, Minnesota. He is board certified by the American Board of Orthopaedic Surgery and also holds Canadian board certification. In addition, he is a Fellow of the Royal College of Surgeons of Canada. Prior to his current practice, Dr. Ahmadi served as Director of Shoulder & Elbow Surgery and as an Associate Professor of Orthopaedics at the University of Arkansas, with clinical responsibilities that included care at Arkansas Children’s Hospital. His research interests include proximal humerus fractures in geriatric patients and muscle fatty degeneration, with publications in peer-reviewed journals. He is a member of the American Shoulder & Elbow Surgeons and the American Academy of Orthopaedic Surgeons.

Audrey H. Huang, MD, is a Physical Medicine & Rehabilitation physician dedicated to helping patients improve function, reduce pain, and return to meaningful daily activities. She is board certified in Physical Medicine & Rehabilitation. Dr. Huang earned her medical degree from Northeast Ohio Medical University College of Medicine. She completed a transitional year internship at Summa Health System and went on to complete residency training in Physical Medicine & Rehabilitation at the University of California, Irvine Medical Center. Dr. Huang’s clinical approach emphasizes comprehensive, non-surgical rehabilitation care for individuals with musculoskeletal conditions and functional limitations. She works collaboratively with multidisciplinary rehabilitation teams to develop individualized treatment plans that support recovery, mobility, and long-term wellness. Her practice is grounded in evidence-based medicine and a patient-centered focus on measurable functional goals. Dr. Huang is affiliated with MemorialCare facilities, including Long Beach Medical Center, Miller Children’s & Women’s Hospital, and Orange Coast Medical Center. She provides care in English and is committed to clear communication and shared decision-making throughout the rehabilitation process.

Barton H. Wachs, MD, is a urologist providing comprehensive evaluation and treatment for a wide range of urologic conditions, with a focus on men’s health and minimally invasive care. He is board certified by the American Board of Urology and is a Fellow of the American College of Surgeons. Dr. Wachs earned his medical degree from the University of California, Irvine, and completed his urology residency at Washington University in St. Louis. He is the founder of Atlantic Urology Medical Group and serves as Chair of the Department of Urology at Memorial Medical Center Long Beach. His clinical interests include erectile dysfunction, male infertility, neurogenic bladder conditions, no-scalpel vasectomy, and vasectomy reversal, as well as minimally invasive prostate procedures and medication-based therapies. In addition to clinical practice, Dr. Wachs is a Qualified Medical Examiner with the California Department of Industrial Relations. Dr. Wachs is known for a patient-centered approach that emphasizes clear communication, shared decision-making, and individualized treatment planning. He speaks English and Spanish and is associated with practice locations in Southern California.

Kazuto Augustus, DPM, is a California-licensed podiatrist providing comprehensive care for conditions affecting the foot and ankle. He practices with West Coast Foot and Ankle Associates and offers evaluation and treatment for a wide range of concerns, including bunions, heel pain, Achilles tendonitis, ingrown toenails, calluses and corns, warts, and diabetic foot wounds and ulcers. Dr. Augustus is affiliated with Long Beach Medical Center and Orange Coast Medical Center, supporting continuity of care when hospital-based services are needed. Dr. Augustus earned his Doctor of Podiatric Medicine degree from the California School of Podiatric Medicine and completed postgraduate podiatric training at Long Beach Memorial Medical Center. In addition to his clinical practice, he serves as an Assistant Professor of Podiatric Medicine and Surgery at Western University of Health Sciences, where he contributes to the education of future clinicians. He also reports involvement in resident teaching and research. Known for a patient-centered approach, Dr. Augustus emphasizes clear communication and individualized treatment plans to help patients return to comfortable, confident movement. He speaks English and is also involved in community and volunteer efforts.

Ross P. Nathan, MD, is an orthopaedic hand surgeon who specializes in the evaluation and treatment of hand and wrist conditions. He earned his medical degree from Baylor College of Medicine after completing undergraduate studies at the University of California, Irvine. Dr. Nathan completed orthopaedic surgery training at New York University Medical Center/Bellevue Hospital, where he served as Chief Resident, and went on to pursue advanced fellowship training in hand surgery at Thomas Jefferson University Hospital. Dr. Nathan is board certified by the American Board of Orthopaedic Surgery and holds a Subspecialty Certificate in Surgery of the Hand. He is also a Fellow of the American College of Surgeons. In addition to his clinical practice, Dr. Nathan has held academic appointments, including Assistant Clinical Professor roles in orthopedic surgery and plastic surgery. He has participated in upper-extremity reconstruction research related to spinal cord injury. Dr. Nathan is affiliated with Long Beach Medical Center and Miller Children’s & Women’s Hospital and has served as Chairman of the Department of Orthopedic Surgery at Long Beach Memorial Medical Center.

Betty Liu, M.D., is a physician specializing in Pediatrics and Allergy/Immunology, providing care for patients of all ages. She earned her undergraduate degree with Honors from the University of California, Berkeley, studying Molecular & Cell Biology and Public Policy. Dr. Liu completed medical school at the University of California, San Diego School of Medicine, with clinical training focused on pediatrics. She went on to complete a pediatrics residency at Harbor–UCLA Medical Center, followed by fellowship training in Allergy/Immunology at the University of Iowa Hospitals and Clinics. Dr. Liu is board-certified in Pediatrics and in Allergy/Immunology. Her clinical interests include pediatric asthma and food allergies, and she is committed to helping families understand allergic conditions and develop practical, individualized management strategies. In addition to clinical care, Dr. Liu has served as an investigator in clinical trials, including studies related to asthma and allergic rhinitis. She practices in an allergy and asthma specialty setting and focuses on evidence-based evaluation and long-term management of allergic and immunologic conditions.