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Doctors and Staff

Head and Neck Surgery

Alfred Simental, Chairman

Dr. Simental has served as the chairman of the Department of Otolaryngology/Head and Neck Surgery since 2003. Under his leadership, the department has grown from five faculty members to nineteen faculty members with all subspecialties within Otolaryngology represented by fellowship trained attending staff. He is a graduate of the medical school as well as the residency program at Loma Linda University. He then completed a fellowship in head and neck oncologic surgery at the University of Pittsburgh. His primary clinical interests are in minimally invasive thyroid and parathyroid surgery, and he is one of the busiest thyroid surgeons in the country.

Steve C. Lee

Dr. Lee finished his MD/PhD at Loma Linda University and then went to University of North Carolina at Chapel Hill for residency in otolaryngology and head and neck surgery. Afterward, he completed a two year fellowship at the University of Pittsburgh Medical Center in skull base surgery and head and neck surgical oncology. He also spent time at the University of Pennsylvania to train in robotic surgery of the head and neck. His clinical interests are in minimally invasive skull base surgery of pituitary, anterior cranial fossa and clival lesions, robotic head and neck surgery was well as all aspects of head and neck oncology. His research interests are in clinical outcomes in head and neck surgery and head and neck tumor immunology.


Charles Stewart III

Dr. Stewart is primarily responsible for the otology and neurotology teaching of the residents in our division. He directs the temporal bone dissection course with Dr. Timothy Jung and presents many of the didactic lectures in otology and neurotology to the residents. He works with the residents in performing ear surgery at both Loma Linda University Medical Center and Riverside Community Regional Medical Center.

Helen Xu

Dr. Xu received her medical degree at Zhejiang University, School of Medicine in China. She completed a residency in Otolaryngology at Charles R. Drew University of Medicine and Science at Los Angeles. Afterward she received a one year fellowship in Otology/Neurotology at Paparella Ear, Head & Neck Institute in Minnesota.

Dr. Xu’s main clinical interests are chronic ear infection; surgeries for hearing loss with ossicular chain reconstruction, bone anchored hearing aid, and cochlear implant; vertigo/dizziness; lateral skull base surgery for acoustic neuroma; temporal bone tumors; tinnitus and Eustachian tube dysfunction. Her main research interests are sensorineural hearing loss; inner ear hair cell regeneration, and alternative medicine for tinnitus.

Pediatric Otolaryngology

Robin Dyleski, Chief

Dr. Dyleski is a graduate of the medical school and residency program at University of Southern California. She then completed a fellowship in pediatric otolaryngology and cleft lip/palate surgery at University of Arkansas. Before coming to Loma Linda, she had served as the Director of Pediatric Otolaryngology at New York eye and Ear Infirmary. Her clinical interests are in all facets of pediatric otolaryngolgy but she has a special interest in cleft lip and cleft palate surgery.

Miguel Krishnan

Dr. Krishnan received his medical degree at Ohio University. He completed a Traditional Rotating Internship and Otolaryngology/Head and Neck Surgery Residency at Ohio University. He completed a two year Pediatric Otolaryngology/Head and Neck Surgery Residency at the State University of New York in Buffalo. He is Board Certified in Otolaryngology/Head and Neck Surgery. He was on faculty at the University of Southern California for three years and served at the Children's Hospital of Los Angeles during that time. He joined the world renowned staff at Loma Linda University Children's Hospital in 2008. His interests are in serving all of the Children in the Inland Empire. He enjoys everything from the common Head and Neck ailments to the complicated Congenital Neck masses, Hemangiomas, Vascular Birthmarks, Pediatric Facial Trauma and Endoscopic Airway management.

Rachelle Wareham

Dr. Rachelle Wareham graduated from La Sierra University with a B.A. in cello performance. After receiving the M.D. from Loma Linda University in 2004, she did residency training at Loma Linda University and completed her residency in Otolaryngology-Head and Neck Surgery in 2009. She recently completed fellowship training in pediatric otolaryngology at Baylor College of Medicine / Texas Children’s Hospital in Houston, Texas.

Dr. Wareham is certified by the American Board of Otolaryngology. As a staff member of the Department of Otolaryngology-Head and Neck Surgery at Loma Linda University, she will specialize in a diverse range of surgeries in pediatric otolaryngology, including otologic procedures, microtia repair, airway surgery, including laryngotracheal reconstruction and endoscopic laser surgery of the airway, sinus surgery, neck masses and facial trauma. In addition, she is a member of the Loma Linda University Children’s Hospital Craniofacial Team.

Sinus & Allergy

Christopher Church, Director

Dr. Church is the director of the Sinus Center. He completed his residency in otolaryngology/head & neck surgery at Loma Linda University. He then spent a dedicated year pursuing a fellowship in Advanced Sinus Surgery & Rhinology at Stanford University. Dr. Church has completed the highest level of training in sinus disease management, and has attended and taught several sinus courses. His special interests include sinusitis and functional endoscopic sinus surgery. Dr. Church also serves as the director of the residency program here at Loma Linda University.

Kristin Seiberling

Dr. Seiberling completed her medical degree at Northwestern University. After medical school she stayed at Northwestern University Medical Center and completed her residency in Otolaryngology and Head and Neck Surgery. Subsequently, she completed a one year Rhinology fellowship in Adelaide, Australia at The Queen Elizabeth Hospital with an internationally recognized sinus and skull base surgeon. During that year she was trained in advanced endoscopic sinus surgery techniques, frontal sinus drill-outs, lacrimal surgery (dacryocystorhinostomy or DCRs), and endoscopic skull base surgery. When she returned from her fellowship she became a member of the American Academy of Otolaryngic Allergy. Her clinical interests are in the management of chronic sinusitis, endoscopic sinus surgery, endoscopic skull base surgery, repair of CSF leaks, surgery of the tear ducts (DCRs) and allergy testing and management. Her main focus of research is in the etiology of nasal polyps and chronic sinusitis.

Voice & Swallowing

Priya Krishna, Director

Dr. Krishna is board certified in otolaryngology and completed a prestigious two year fellowship in Laryngology and Care of the Professional Voice at the University of Pittsburgh Medical Center under Clark Rosen, M.D., F.A.C.S. Prior to this she completed a residency in Otolaryngology-Head and Neck Surgery at the Southern Illinois University School of Medicine. Dr. Krishna served as faculty in the Department of Otolaryngology at the University of Pittsburgh Medical Center from 2006 to 2011 while concurrently completing a Master of Science degree in Clinical Research.

Dr. Krishna specializes in surgical and medical care of voice, airway and swallowing disorders including phonomicrosurgery of benign and early malignant lesions of the vocal folds, office laser based procedures for laryngeal pathology, endoscopic treatment of airway stenosis and neurological disorders of the larynx. She has a special research interest in treatment of vocal fold scarring and related wound healing disorders of the larynx and has been funded extramurally (including federal) for her work in the past.

Facial Plastic and Reconstructive Surgery

Jared Inman

Dr. Inman received his medical degree from Loma Linda University School of Medicine. Dr. Inman finished his residency at Loma Linda University in Otolaryngology—Head and Neck Surgery in 2009. Dr. Inman completed his fellowship in Facial Plastic and Reconstructive Surgery under Dr. Yadro Ducic through the American Academy of Facial Plastic and Reconstructive Surgery in Dallas-Fort Worth, Texas. Dr. Inman also spent a year receiving advanced training in Head & Neck Oncology and Reconstruction, Transoral Microlaser Surgery & Transoral Robotic Surgery at Mayo Clinic Arizona. Dr. Inman is Board Certified in Otolaryngology and Board Eligible in Facial Plastic & Reconstructive Surgery. Dr. Inman’s clinical and research interests are in facial plastic and reconstructive surgery, head and neck cancer surgery, robotic and minimally invasive transoral laser surgery for cancers of the head and neck, and microvascular reconstructive surgery of the head and neck.

Research Faculty

Laurence D. Fechter
Dr. Laurence Fechter is a Senior Career Research Scientist at the Jerry L. Pettis Memorial VA Medical Center in Loma Linda, CA and holds a Research Professorship in the Department of Otolaryngology, Head & Neck Surgery at the Loma Linda University School of Medicine. Prior to taking these positions, Dr. Fechter was the Mosier Centennial Professor of Toxicology and Director of the Oklahoma Center for Toxicology at the University of Oklahoma Health Sciences Center (1993-2002). His first academic position was in the Department of Environmental Health Sciences at the Johns Hopkins School of Hygiene and Public Health (1976- 1993) where he attained the rank of Professor of Environmental Toxicology. Dr. Fechter obtained his Ph.D. from the University of Rochester in the fields of Neurosciences/Biopsychology and undertook post-doctoral training in the Medical Pharmacology Institute at the University of Uppsala (Sweden) Biomedical Center and in the Environmental Toxicology Division at Hopkins School of Hygiene.

Dr. Fechter’s research is focused on understanding mechanisms by which chemical contaminants disrupt the auditory system and potentiate noise-induced hearing loss. This work has entailed studies of carbon monoxide, hydrogen cyanide, acrylonitrile, and organic solvents. A major focus of this research has been on understanding the role of oxidative stress in ototoxicity. Dr. Fechter has also been engaged in studies of manganese neurotoxicity and developmental neurotoxicology.

Brenda Lonsbury-Martin
Dr. Lonsbury-Martin received her BA from the University of Victoria, her Masters in neuroscience/cell biology from the University of Oregon Medical School, and her PhD in biopsychology from Oregon Health and Science University. She also completed postdoctoral fellowship training in psychobiology and in physiology and biophysics at the University of California, Irvine and the University of Washington, respectively.Her research interests include the early detection of hearing loss using physiological measures of ear function, basic mechanisms of noise-induced hearing loss, the role of the cochlear efferent system in protecting the ear from noise damage, and cochlear plasticity. Her research has been funded by the National Institutes of Health.

Dr. Lonsbury-Martin is a fellow of the Acoustical Society of America and a member of a number of professional societies that represent research in the basic and clinical sciences of hearing. Dr. Lonsbury-Martin also serves on the editorial boards of a number of journals in the hearing science and audiology areas and on the review panels of several private foundations that fund research on hearing loss and tinnitus.

O'neil W. Guthrie
Dr. Guthrie received his B.S. and M.S. degrees from the State University of New York campuses at Geneseo and Fredonia. He completed research training in molecular biology and audiology at the University of Pittsburgh where he earned a Ph.D. He then completed postdoctoral training in molecular genetics at Duke University where he was awarded the Hargett Cell Biology Fellowship. In addition to his research credentials, he is also a licensed clinical audiologist. Dr. Guthrie is the recipient of a number of competitive awards including but not limited to, the K. Leroy Irvis Award, an NRSA, the Dr. Martin Luther King, Jr., Award and a RR&D CDA-2. He holds both research and clinical appointments at the Loma Linda VA Medical Center as well as an Assistant Research Professorship in the Department of Otolaryngology Head and Neck Surgery, Loma Linda Medical Center.

Dr. Guthrie's research spans the molecular/cellular/organ and organismal levels of inquiry. His basic science research program is focused on revealing molecular mechanisms that regulate genomic integrity among cells in the auditory system and the engineering of biomedical approaches to enhance the capacity of cell/tissues/organs/organisms to protect their DNA. In addition to his basic science research program Dr. Guthrie is also interested in translational research that affects clinical outcomes.

Timothy T.K. Jung
Dr. Jung completed his medical degree at Loma Linda University School of Medicine and then went on to residency at the University of Minnesota. He is responsible for the otology training of our residents at the Jerry L. Pettis Memorial Veterans Affairs Medical Center on a weekly basis. In addition, he supervises their temporal bone dissection bench work at the temporal bone lab at the VA Hospital. He directs and supervises the residents in their efforts in basic research projects. Within the past five years Dr. Jung has over 35 manuscripts published in scientific journals. He has over 10 research grants and has research projects in "Inflammatory Mediatros in Otitis Media and Inner Ear Function" and "Ciliary Abnormality and Dysfunction in the Pathogenesis of Radiation Induced Otitis Media with Effusion". Dr. Jung is also featured in Who's Who in America, in the West, Science and Technology, and World.

Administrative Staff

Christina Noble-Macomber, Academic Manager
Cynthia Greber, Residency Coordinator
Katie Wisegarver, Administrative Assistant

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