Mark brings over two decades of experience to Drs. Wyatt and Wyll, providing hearing assessment for infants to adults, balance (ENG) testing, and the evaluation, fitting and dispensing of hearing aids. He worked with Dr. Wyatt since 1995, and previously was on staff at Presbyterian Hospital, monitoring hearing levels of patients subjected to ototoxic levels of drugs, as well as providing hearing screenings for patients at several Presbyterian Senior Health Centers.Mark worked at Baylor Medical Center in the early 1990’s with a group of otologists and otolaryngololgists, testing hearing, dispensing hearing aids, monitoring the facial nerve and cochlear potential; evaluating and fitting cochlear implant patients, and performing electronystagmography (ENG) testing on dizzy patients.Earlier work for several ear-nose-throat physicians included doing routine audiometric testing, auditory brainstem response testing, surgical monitoring during otoneurological procedures involving the VIIth (facial) and VIIIth (hearing) nerves, as well as monitoring of the spinal cord during orthopedic and neurological procedures. Mark worked during the late 1980’s as the primary Audiologist at Children’s Medical Center of Dallas, evaluating infants-to-young adults in both outpatient and inpatient settings, and working directly with ear-nose-throat medical doctors and staff from University of Texas Southwestern Medical School.Mark’s career began in the Houston area, where he worked with several ear-nose-and-throat doctors in private and group office settings providing audiometric testing, balance testing and tinnitus evaluations. At the University of Texas Health Science Center in Houston, he worked closely with medical residents and staff doctors doing hearing tests for adults to children, dispensing hearing aids under the state Medicaid children and adult programs, assisting with auditory brainstem response testing and balance testing of inpatients. During this time he served as Director of Services for the Hearing Impaired at a non-profit, United Way agency, providing aural rehabilitation services; administering a hearing aid bank for the indigent, and working closely with the deaf action agency in Houston.Mark received a Master’s of Science in Communication Disorders from the University of Texas at Dallas, a Clinical Certificate of Competence in Audiology from the American Speech, Language and Hearing Assocation (ASHA) and has been certified as a Licensed Audiologist by the Texas State Board of Examines in Speech-Language Pathology and Audiology.