Meet the Staff

Allison Coltisor, Au.D.

Allison Coltisor, Au.D.

Clinical Audiologist - New Mexico Locations

Dr. Allison Coltisor is a clinical and research audiologist with National Hearing and Balance serving the Los Alamos and Albuquerque clinic locations. She specializes in balance disorders and concussion/traumatic brain injury. Prior to this, she has worked in private practice and hospital settings with pediatric and adult patients in a variety of subspecialities within audiology.

She completed her undergraduate studies in Speech Language Pathology and Audiology with a minor in American Sign Language and Deaf Studies at California State University, Sacramento. She received her Doctorate in Audiology at Texas Tech University Health Sciences Center, a post-doctoral fellowship with Vanderbilt University Medical Center in Vestibular Sciences and is working towards the completion of her Ph.D. at the University of North Carolina Greensboro (Communication Sciences and Disorders) in the research area of traumatic brain injury.

Dr. Coltisor is a Fellow of the American Academy of Audiology and currently serves as a member of the Guidelines and Strategic Documents Committee. She also holds her Clinical Certificate of Competence in Audiology from the American Speech Language Hearing Association. She is an active reviewer for the American Journal of Audiology and the American Speech Language Hearing Association’s journal Perspectives. She has publications in the areas of tinnitus, vestibular sciences and disorders, and cochlear implants. Her research area is clinical best practices for traumatic brain injury.

Areas of Expertise:

  • Adult Audiology
  • Pediatric Audiology
  • Balance Disorders
  • Hearing Disorders
  • Tinnitus
  • Hearing Aid Services
  • Head Injury / Concussion / Traumatic Brain Injury


Dr. Coltisor accepts pediatric (4 years of age and over) * and adult patients who are needing the following care:

  • Comprehensive Audiological Evaluations
  • Basic and Comprehensive Balance Function Evaluations
  • Benign Paroxysmal Positional Vertigo Evaluation and Treatment
  • Neurologic Auditory Brainstem Response Testing
  • Central Auditory Processing Disorder Testing (Pediatric and Adult) **
  • Pre- and Post-Concussion Testing (ImPACT testing)
  • Hearing Aid Services (fitting, dispensing, programming and Real Ear verification)
  • Select Telehealth Services and Consultations
  • Bone-anchored Hearing Aid Evaluations and Programming
  • Cochlear Implant Candidacy Evaluations
  • Auditory Rehabilitation
  • Tinnitus Evaluations
  • Cognitive Screening (MoCA Certified)

*Children under the age of 4-years may be seen for select services on a case-by-case basis. Please contact our office if you have any questions. 

​**Fee-for-service. Please contact our office for details. 

When she is not at work, Dr. Coltisor enjoys spending time with her husband and Shiba inu, mountain biking, reading, cooking, and baking.


Dr. Laci Le, Au.D

Dr. Laci Le, Au.D

Clinical Audiologist - Texas Locations

Dr. Laci Le strives to empower her patients with a deep understanding of their hearing conditions, ensuring they feel confident in their treatment choices and achieve optimal outcomes. A clinical audiologist at National Hearing and Balance, she serves patients in San Antonio and Hondo, Texas, with plans to extend her expertise to San Tan Valley, Arizona, in 2024. She is an expert in addressing adult hearing loss, the intricacies of hearing aids, as well as dizziness and balance issues. With broad experience – ranging from private practice to hospital settings and VA clinics – Dr. Le has honed her skills across many subspecialties since joining the team in 2021.

Her educational background includes a B.S. in Communication Sciences and Disorders (which is commonly known as “Speech Language Pathology and Audiology”), with minors in Pre-med and Psychology from Southern Illinois University Edwardsville, followed by a Doctorate in Audiology from the University of Illinois Urbana-Champaign. There, she engaged in diverse clinical experiences and helped advance the field by conducting a capstone project on when to use a combination of a hearing aid and a cochlear implant, or cochlear implants on both sides. She hopes this will provide current and future audiologists with an evidence-based tool to guide clinical decisions.

Dr. Le’s expertise spans adult audiology, hearing and balance disorders, tinnitus, and hearing aid services, including Real Ear Measurements (REM). She welcomes both pediatric patients, from the age of nine, and adults seeking comprehensive audiological and balance evaluations and hearing aid fittings. She believes a hearing aid alone, even with its technological advances over the past decade, cannot be substituted for patient-centered care, evidence-based fittings, and dispensing practices. This is why she takes pride in guiding her patients to understand their hearing loss diagnosis, its impact, and treatment options.

Outside of her clinical role, Dr. Le channels her creativity into her blog, where she offers practical advice on forming good habits. She enjoys spending quality time with her husband and their energetic Great Pyrenees, pursuing personal bests in 5K and 10K races, hiking, reading, and discovering new restaurants and bakeries.


  • B.S., 2015, Southern Illinois University Edwardsville
  • Au.D., 2019, University of Illinois Urbana-Champaign

Areas of Expertise: 

  • Adult Audiology
  • Hearing Disorders
  • Balance Disorders
  • Tinnitus Management
  • Hearing Aid Services & Repairs
  • Real Ear Measurements
  • Custom Earmolds & Earplugs
  • Cognitive Screening (MoCA Certified)

Dr. Le accepts pediatric (9 years of age and over) and adult patients who are needing the following audiological and balance care:

  • Comprehensive Audiological Evaluations
  • Balance Function Evaluations
  • Hearing Aid Evaluations
  • Patient-centered Hearing Aid Fittings and performing Real Ear Measurement (REM)
  • Cognitive Screening (MoCA Certified)
Mary Sauvageau

Mary Sauvageau

4th Year Doctoral Student

Mary was born and raised in Greenville, South Carolina. After completing her Bachelor of Science at Appalachian State University she moved west to work in the Grand Teton National Park. While employed in Moran, WY she met her husband and followed love to Idaho. Christopher and Mary married in the summer of 2021. Since then, she pursued a doctor of audiology at Idaho State University.

 She will graduate in May 2025.  She will be completing her fourth-year rotation at National Hearing and Balance (beginning June 2024).  “As my family and I transition from Idaho to New Mexico, I am excited to continue to support the audiology community.”

 Mary’s primary location will be the Albuquerque office. Her clinical role is providing cutting edge evidence based audiologic services and achieving excellent patient satisfaction.

 Her career goal is to serve patients on their hearing journey and improve their quality of life.

 In her free time, Mary enjoys practicing yoga and spending time outside skiing, mountain biking, and camping. Mary and her husband have an adorable husky puppy named Juneau that joins them on outdoor adventures on her time off and loyally guards their home. 

Blanca Alvarez

Blanca Alvarez

Lead Patient Care Coordinator - Texas Locations

Blanca Alvarez has over 25 years of experience working in the medical health field.  She worked at NSI for approximately 5 years before Brad invited her to come work for National Hearing and Balance.  She joined NHB in November of 2021 and has played a vital role in our company.  She has had 20 years of management experience and is currently our lead patient care coordinator for Texas, New Mexico and soon to be Arizona locations.  Along with providing patient care in Texas, she assists with training and managing other patient care coordinators within our company.  She also assists Doctor Le with hearing aid patients, doing hearing aid check and cleans, maintaining inventory, and providing screenings. 

Blanca enjoys the leadership of the company and enjoys her co-workers.  “This is the happiest I’ve been working for any company.  Working with patients is what I do best.  Customer service is my biggest passion.  Seeing patients leave with a smile on their faces because of the care and treatment they received is very rewarding.” 

On a personal level, Blanca was born and raised in San Antonio, Texas.  She is bilingual, with Spanish being her first language.  She enjoys spending time with her Granddaughters and 1 Great Grandson.  She enjoys doing yard work.

Michael Guglielmino

Michael Guglielmino

Patient Care Coordinator - Albuquerque, NM

Michael was born and raised in Melbourne, Florida.  He moved to Albuquerque, NM in 2017, where he eventually met his wife, Holly.  Holly briefly worked for National Hearing and Balance before returning to her old position and highly recommended her husband to become our patient care coordinator in ABQ.  Holly was such a great employee, that we knew her endorsement was valid.  Michael has extensive experience providing customer service He did not have any experience working for a medical practice but has excelled at his job and is a valued employee.  He joined our practice in February 2023. 

Having a hearing loss, he can relate to patients and understand the care they need.  “The care they will get here with our provider is amazing!  The patients coming to our office are going to get the care they need no matter what.” 

The comradery among coworkers and knowing his opinion as an employee are valued are important to him.  “I don’t feel like an employee, I feel like part of a family.” 

Michael would like to advance in his position at NHB providing a leadership role. 

Outside of work, Michael likes to hang out with his wife and fur babies and is an avid sports fan (baseball and football).

Kayla McCall

Kayla McCall

Audiology Assistant - New Mexico

Kayla McCall (nee McMartin) was born and raised in Washington State.  She graduated with her undergraduate degree in Communication Science and Disorders from Eastern Washington University in 2022.  She met her husband, Chase, on facetime (he was living in New Mexico and in the military).  After finishing her degree they married, Kayla moved to NM, and found a position with National Hearing and Balance.  With her degree in Communication Science and Disorders, she was already familiar with hearing sciences. 

Kayla began her career with NHB as a dual Patient Care Coordinator and Audiology Assistant.  Once we were fully staffed and functional, she moved to Audiology Assistant, but still assists PCCs when needed.  Kayla obtained her certificate as an Audiologist Assistant in Amplification with Nova Southeastern University.  Her primary function is to work closely with Dr. Coltisor and patients.  When not taking a case history, assisting with testing, she assists with hearing aid check and cleans, hearing aid orientations, managing inventory and supplies. 

Kayla loved working at NHB because it gave her the opportunity to challenge herself in a field she never thought she would be a part of and appreciated the support she received from other staff members.  The experience she gained at NHB will help her in future career with patients and the importance of a supportive team network including audiology. 

Kayla is currently working on her master’s degree in Speech Language Pathology at University of Saint Augustine for Health Sciences and will be leaving New Mexico in April of 2024.  Kayla and her husband will be moving to Texas, to be closer to his family, and where he will begin his post military career.  In her spare time Kayla enjoys walking her dog and camping.  Right now, she is very committed to schoolwork.  

Kayla will be truly missed by our staff and patients and wish her and Chase the best in their future endeavors.


Kylene Melton

Kylene Melton

Patient Care Coordinator - Los Alamos, NM

Kylene Melton is the newest member of our team.  She joined us in October of 2023.  Kylene is the Patient Care Coordinator in our Los Alamos office. She acts as a bridge between the patients and providers. She schedules patients, collects payments, and communicates with referring providers. Kylene also works closely with patients and the Audiologist to order and receive Hearing Aids.  

What Kylene likes about working at NHB is helping patients live their best lives through improved hearing. Through improved hearing, patients can better communicate and understand their loved ones, and better enjoy their hobbies and interests. 

When not at work, Kylene enjoys hiking, baking, singing with the Los Alamos Choral Society, and writing poetry. She also loves to spend time with her family and friends.

Hear. There. Everywhere.

Contact us at any time

New Mexico
(505) 539-2045

(210) 529-8056