The Medical Opinion Marketplace

Rabea Alhosh, MD, is a pediatrician with subspecialty expertise in pediatric gastroenterology, caring for infants, children, and adolescents with digestive, liver, and nutritional conditions. She is an Assistant Professor in the Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology & Nutrition, at the Kirk Kerkorian School of Medicine at UNLV. Dr. Alhosh earned her medical degree from the University of Damascus in Syria. She completed her pediatrics internship and residency at University of Iowa Hospitals & Clinics, followed by fellowship training in pediatric gastroenterology at Children’s Hospital Los Angeles. She is board certified in General Pediatrics and Pediatric Gastroenterology by the American Board of Pediatrics. Her clinical interests include inflammatory bowel disease, pediatric liver disease, endoscopy, and eosinophilic esophagitis. Dr. Alhosh’s academic work includes published research in areas such as pediatric pancreatitis, hepatopulmonary syndrome, acute pancreatitis, and cannabinoid hyperemesis syndrome. She has been recognized with the Skirball Fellowship Research Award and a Teacher of the Year Award for her dedication to education and patient-centered care. Dr. Alhosh speaks English and Arabic.

Dr. Morton Hyson is a physician with decades of clinical experience and is listed publicly in some directories with a focus in neurology. He has provided evaluation and management of neurologic symptoms and conditions, emphasizing careful clinical assessment and individualized treatment planning. Licensed in multiple states, Dr. Hyson brings a broad perspective shaped by practicing across diverse healthcare settings and regulatory environments. Dr. Hyson’s work is characterized by attention to diagnostic detail and coordination of care, helping patients and referring clinicians navigate complex neurologic concerns. He has participated in government payer programs where applicable. As with many physicians who have practiced across multiple jurisdictions, portions of Dr. Hyson’s licensing history include administrative and disciplinary actions documented by state medical boards. Patients may wish to review the current status of his licensure in their state when considering care. Dr. Hyson remains committed to professional standards and to delivering medically appropriate, patient-centered care.

Jeremy J. Oh, DO, is a physician specializing in internal medicine, with additional clinical focus in cardiology and interventional cardiology. He is listed in Hudson Regional Health’s physician directory as a cardiology/interventional cardiology provider, bringing an internal medicine foundation to the evaluation and management of complex cardiovascular conditions. Dr. Oh completed an internal medicine residency at Valley Hospital. His medical training includes earning a Doctor of Osteopathic Medicine degree from A.T. Still University. He also holds a master’s degree in Medical Sciences from Boston University and earned his undergraduate degree from Brandeis University. Dr. Oh is board certified in Internal Medicine by the American Board of Internal Medicine. His osteopathic training supports a patient-centered, whole-person approach, emphasizing careful assessment, evidence-based decision-making, and coordination across specialties when needed. He is committed to delivering thoughtful, comprehensive care for adults, with attention to both preventive health and the management of acute and chronic medical conditions.

Michel Daccache, D.D.S., FACS, is a dentist with clinical focus in oral and maxillofacial surgery, providing surgical care for conditions affecting the mouth, jaws, and facial structures. He is affiliated with Nevada OMS in the Greater Las Vegas area, where he works with patients who need specialized evaluation and treatment planning for a wide range of oral surgery needs. As an oral and maxillofacial surgeon, Dr. Daccache’s practice environment commonly includes services such as wisdom tooth removal, dental implant surgery, corrective jaw procedures, evaluation of oral pathology, and management of facial trauma. He emphasizes thoughtful consultation, attention to patient comfort and safety, and clear communication so patients understand their diagnosis, treatment options, and expected recovery. Dr. Daccache holds dental licensure in Nevada and Pennsylvania and is a Fellow of the American College of Surgeons (FACS), reflecting a commitment to professional standards in surgical care. He has also been recognized regionally in a “Top Dentists” listing within the oral and maxillofacial surgery category.

Shadi Abdelnour, MD, is an endocrinologist specializing in diabetes, endocrinology, and metabolism. He is board certified in Endocrinology, Diabetes & Metabolism by the American Board of Internal Medicine and brings extensive clinical experience to the care of adults with complex hormonal and metabolic conditions. Dr. Abdelnour’s clinical interests include diabetes management, obesity medicine, and lipid disorders, supported by additional professional certifications in obesity medicine and clinical lipidology. Dr. Abdelnour completed medical training at the Faculty of Medicine Damascus and pursued postgraduate training in internal medicine at St. Luke’s–Roosevelt Hospital Center affiliated with Columbia University College of Physicians and Surgeons. He completed fellowship training in endocrinology, diabetes, and metabolism at Baylor College of Medicine in collaboration with The University of Texas MD Anderson Cancer Center. In addition to his clinical practice, Dr. Abdelnour serves as an Assistant Professor of Medicine in the Division of Endocrinology at the University of Nevada School of Medicine. He is a member of the American Association of Clinical Endocrinologists, The Endocrine Society, and the National Lipid Association. Dr. Abdelnour speaks Arabic and English.

Naresh P. Singh, MD, is a pulmonary disease physician providing care for adults and older adults in Las Vegas, Nevada. He earned his medical degree from the University of Nevada School of Medicine and completed residency training in Internal Medicine at the Kirk Kerkorian School of Medicine at UNLV. He further specialized through fellowship training in Pulmonary Disease and Critical Care Medicine at the University of California, Irvine. Dr. Singh is affiliated with hospitals within The Valley Health System, including Spring Valley Hospital Medical Center, Centennial Hills Hospital Medical Center, Valley Hospital Medical Center, and Summerlin Hospital Medical Center. He also practices with Pulmonary Associates. With advanced training in pulmonology and critical care, Dr. Singh evaluates and manages a wide range of respiratory conditions, from chronic lung diseases to complex breathing problems that may require hospital-based or intensive care. He is committed to evidence-based, patient-centered care, partnering with patients to develop individualized treatment plans that support symptom control, functional improvement, and long-term respiratory health. Dr. Singh provides care in English.

Olivia Rhee, L.Ac., O.M.D., Dipl. OM, is a licensed acupuncturist providing Traditional Oriental Medicine services in Las Vegas, Nevada. She holds a Master of Science in Traditional Oriental Medicine from Pacific College of Oriental Medicine and is a Diplomate of Oriental Medicine certified by the National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM). Fluent in English, Ms. Rhee offers individualized care that may include acupuncture and herbal therapy, with a clinical focus on pain management concerns such as back pain and sciatica. Ms. Rhee practices as part of a family acupuncture team and has supported the profession through service with the Nevada State Board of Oriental Medicine, including leadership responsibilities in board administration. Her background also includes a Master of Science in Vocal Performance and Musical Theatre, and she is a Certified TamaDo Practitioner, incorporating sound and color-based healing modalities as appropriate to support patient-centered care. She is listed as contracted within the OptumCare Network of Nevada.

Dr. C. Philip Colosimo, PhD, is a licensed clinical psychologist who provides comprehensive psychological care for adults, with a clinical focus on anxiety disorders, depression, post-traumatic stress disorder (PTSD), and pain management. He is experienced in cognitive-behavioral and behavioral approaches and also incorporates expressive and supportive psychotherapy to help patients build practical skills, improve coping, and strengthen emotional resilience. Dr. Colosimo has specialized in cognitive-behavioral treatment of anxiety-related conditions for decades, including concerns such as obsessive-compulsive disorder, panic symptoms, and specific phobias. In addition to therapy, he offers psychological and neuropsychological testing and diagnostic interview evaluations to support accurate diagnosis and individualized treatment planning. He is a retired U.S. Air Force clinical psychologist and brings particular insight into the needs of veterans and individuals navigating the effects of trauma and high-stress environments. Dr. Colosimo also provides hypnosis and hypnotherapy as an adjunctive service when clinically appropriate. Dr. Colosimo earned his PhD in Counseling and Psychology from The Ohio State University and maintains professional affiliations with organizations including the American Psychological Association and the American Society of Clinical Hypnosis.

George Michael Elkanich, MD, is an orthopaedic spine surgeon in Las Vegas, Nevada. He is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery and provides comprehensive evaluation and surgical care for a wide range of spinal conditions affecting the cervical, thoracic, and lumbar spine. Dr. Elkanich earned his medical degree from the University of Arizona College of Medicine and completed orthopaedic surgery residency training through Stanford University and its affiliated programs. He then pursued advanced fellowship training in spine surgery at the American Institute of Spine Surgery in Sacramento. In addition to his clinical work, Dr. Elkanich has been publicly credited with co-developing spinal devices, including systems used for anterior cervical plating and vertebral body replacement. He is a member of professional organizations such as the North American Spine Society and the American Academy of Orthopaedic Surgeons, reflecting an ongoing commitment to evidence-based care and continued professional development. Dr. Elkanich is affiliated with Centennial Hills Hospital Medical Center and has been in practice since completing his spine fellowship.

Mark J. Rosen, MD, is a board-certified orthopaedic surgeon with a clinical focus on hip and knee conditions. He brings a strong analytical foundation to patient care, having completed undergraduate studies at the Massachusetts Institute of Technology, earning degrees in Management and Chemical Engineering, before receiving his medical degree from Baylor College of Medicine. Dr. Rosen completed his orthopaedic surgery residency training at the University of Texas Health Science Center at San Antonio. In addition to his clinical work, Dr. Rosen has held orthopaedic surgery leadership appointments within Las Vegas-area hospitals, including service as Vice Chief of Orthopedic Surgery at University Medical Center and as Chief of Orthopedic Surgery at Summerlin Hospital Medical Center. He is also a founding member of the Trauma Orthopedic Surgical Specialists group at University Medical Center. Dr. Rosen maintains affiliations with multiple hospitals in the Las Vegas region, including University Medical Center, Valley Hospital, Mountain View Hospital, Summerlin Hospital, and Centennial Hills Hospital. He also has a special interest in forensic musculoskeletal medicine, applying orthopaedic expertise to complex injury-related questions.