Dr. Holly Blocker Arentz, Au.D., CCC/A, FAAA

Dr. Holly Blocker Arentz, Au.D., CCC/A, FAAA

Chief of Audiology
Doctor of Audiology

  • Texas Licensed to Practice Audiology
  • Certificate of Clinical Competency in Audiology
  • Fellow of the American Academy of Audiology
  • Member of the American Speech-Language-Hearing Association
  • Doctorate of Audiology, Salus University
  • Master of Science & Bachelor of Science, University of Arizona

Dr. Blocker Arentz is a proud alumnus of Salus University, where she obtained her doctoral degree, and the University of Arizona, where she earned both her Bachelor and Master of Science degrees in Speech and Hearing Sciences.  During her studies, she assisted in research projects involving the importance of communication in the Alzheimer patient. She was also actively involved in the organization and implementation of communication seminars and hearing aid clinics for local assisted living and retirement centers.

Dr. Blocker Arentz completed her clinical fellowship at Otolaryngology Associates of Arlington and Physicians’ Hearing Aid Center, which are now a part of Central Park Ear, Nose and Throat.  As the Chief of Audiology, Dr. Blocker Arentz has a mission of providing exemplary care for those affected by hearing loss. She enjoys working with patients of all ages and their families, and takes pride in providing them with tools for better communication, hearing preservation and improvement in quality of life through the use of technology.  “It is my personal goal to help people with hearing loss find the avenues to not only hear better, but to enjoy a quality in life.”

In her free time, Dr. Blocker Arentz enjoys art museums, traveling, watching independent films and spending time with her husband and their fur-baby, a miniature dachshund named Linus.

Justin Langran, Au.D., CCC/A, FAAA

Doctor of Audiology 

  • Texas Licensed to Practice Audiology
  • Certificate of Clinical Competency in Audiology
  • Fellow of the American Academy of Audiology
  • Member of the American Speech-Language-Hearing Association
  • Doctorate of Audiology, University of Texas at Dallas
  • Bachelor of Science, University of North Texas

As an integral part of the Doctor of Audiology (Au.D.) degree at the University of Texas at Dallas-Callier Center for Communication Disorders, Dr. Justin Langran completed a clinical fellowship at UT Southwestern Medical Center, serving patients at Parkland, Children’s Medical Center, and St. Paul. His graduate training, fellowship, work experience, and continuing education at national conferences have provided an excellent breadth and depth of knowledge in advanced hearing and balance diagnostic evaluations. Dr. Langran has worked in a wide variety of clinical and private practice settings and has assisted in several cochlear implant research studies.

Dr. Langran is passionate about helping patients of all ages with their hearing. He is proud to work with only the finest hearing aid manufacturers and enjoys the challenge of staying at the forefront of constantly evolving hearing technology. He finds it very rewarding to help patients maximize their quality of life through better hearing healthcare.  Outside of work, you will find him camping, fishing, running 5ks with his family, and attending his children’s piano and violin recitals.

Catherine Ross, Au.D., CCC/A, FAAA

Catherine Ross, Au.D., CCC/A, FAAA

Doctor of Audiology 

  • Texas Licensed to Practice Audiology
  • Certificate of Clinical Competency in Audiology
  • Fellow of the American Academy of Audiology
  • Member of the American Speech-Language-Hearing Association
  • Doctorate of Audiology, Nova Southeastern University
  • Bachelor of Arts, Baylor University

Catherine Ross is a native Texan from Longview. She graduated with her Bachelor of Science in Communication Sciences and Disorders from Baylor University (Go Bears!). She received her Doctor of Audiology (Au.D.) from Nova Southeastern University and has worked with patients of all ages and in various clinical environments, including the West Palm Beach VA and the Miami Children’s Hospital.

Dr. Ross completed her clinical residency at Overton Brooks Veterans Affairs Medical Center in Shreveport, Louisiana. She is ecstatic to be back in her home state providing comprehensive hearing healthcare for all ages at Central Park ENT.  In her spare time, Catherine enjoys playing tennis and serves as captain of the East Texas women’s tennis league. She is a proud owner of a dachshund named Finley.

Allison Hampton Farrell, Au.D., CCC/A, FAAA

Allison Hampton Farrell, Au.D., CCC/A, FAAA

Doctor of Audiology 

  • Licensed to Practice Audiology in Texas
  • Certificate of Clinical Competency in Audiology
  • Fellow of the American Academy of Audiology
  • Member of the American Speech-Language-Hearing Association
  • Texas Academy of Audiology
  • Doctorate of Audiology, University of Texas at Dallas/Callier Center
  • Bachelor of Science in Communication Sciences and Disorders, University of Texas in Austin

Dr. Farrell joined Central Park in 2020 after working in an ENT setting for 14 years.  Dr. Farrell earned a bachelor’s degree in Communication Sciences and Disorders from the University of Texas at Austin before receiving her Doctor of Audiology degree from the University of Texas at Dallas/Callier Center in 2007.

Dr. Farrell is passionate about helping her patients address the challenges of hearing loss.  She specializes in diagnostics, hearing aid technology, custom hearing protection, and cochlear implant services.  Her clinical experience includes a wide variety of audiological services to both pediatric and adult populations, including diagnostic hearing evaluations, hearing device evaluations, fitting and verification, assistive devices, and tinnitus management/treatment.

Dr. Farrell was raised in Arlington and graduated from Lamar High School.  She continues to have a close relationship with the community and loves building longstanding, positive relationships with her patients while assisting them with their hearing needs.  When she’s not working to help patients hear better, she enjoys spending time with her family and watching her children at sporting events and school activities.