Our Passionate Team
Hilda Robertson
Administrative Manager
Hello, my name is Hilda Robertson and I am the Patient Care Coordinator for the Pasadena office. I join the Doctors of Hearing, Inc. team in April 2021 with over 20 years of experience in the hearing industry. At Doctors of Hearing, my daily tasks include everything from assisting the Senior PCC to booking appointments and ensuring patients have a pleasant experience while at our office. I am happy to be the friendly face that greets our patients at the door. Working in this industry has been a great privilege. I especially love knowing that I have a small part in helping someone's hearing improvement.
I strongly value our patients' satisfaction and am willing to offer my assistance in any way necessary. It is very exciting to start this journey with Doctors of Hearing and I am proud to be able to be a part of great group of people. Outside of work I am a loving wife, mother and grandmother. I enjoy spending time with other family members as well on my weekends.
Melissa Chavez
Audiology Aide/PCC
Hello my name is Melissa Chavez, I am a Patient Care Coordinator at the Rancho Cucamonga location of Doctors of Hearing and joined the team in January 2026. I am bilingual in English and Spanish and enjoy assisting Spanish-speaking patients so they feel comfortable communicating and fully understand their hearing care and recommendations.
My responsibilities include scheduling appointments, answering patient questions, and assisting with authorizations and CPT code modifications to help ensure insurance coverage. I enjoy working at Doctors of Hearing because of the respectful team environment and the care shown to both patients and staff. I also appreciate the skills that I have learned while working at doctors of hearing.
Adam Cho
Accounts Payable
Adam Cho has been working with Doctors of Hearing since 2011, beginning as a volunteer when the company first started. Prior to that, he spent many years volunteering at senior centers, senior fairs, and churches. His passion for helping older adults began at a young age, inspired by the love, respect, and care he has for his grandparents and the fact that his parents are Audiologists.
Adam enjoys assisting patients and listening to the stories shared by seniors, believing that every conversation offers an opportunity to learn and build meaningful connections. Over time, many patients have become like family and longtime friends, and he values the sincere affection they show.
He is bilingual in English and Spanish, with some knowledge of Korean. Adam attended Mt. San Antonio College, where he completed general education courses along with studies in the medical field.
Outside of work, Adam enjoys attending church. He has volunteered at his previous church by editing photos and serving on the worship team. He also plays the guitar and keyboard.
Adam loves working at Doctors of Hearing because he strongly aligns with the organization’s commitment to treating every patient with compassion, dignity, and respect. He shares the same mission and takes great pride in helping others whenever he can.
Adam currently works remotely overseeing the accounts payable for hearing aids. He ensures that payments are processed in a timely manner and that applicable orders are properly credited.
Jacqueline Preciado
Insurance Verification Specialist
Jacqueline Preciado is the Insurance Verification Specialist at Doctors of Hearing, Inc., where she joined the team in March 2022. In her role, she is responsible for interpreting and explaining hearing aid insurance benefits, helping patients clearly understand their coverage and options.
Jacqueline brings over 20 years of experience in the medical field, with the past eight years focused specifically on insurance verification within the hearing healthcare industry. She values being part of the Doctors of Hearing team and appreciates the supportive, collaborative environment that allows everyone to work together to provide the highest level of care to patients.
Outside of work, Jacqueline enjoys spending quality time with her children and parents. She also likes dining out, going to the movies, and taking relaxing walks along the beach.
Belinda Valle
San Dimas and Rancho Cucamonga patient care coordinator
Bella serves as a Patient Care Coordinator at Doctors of Hearing, where she supports both patients and the clinical team to ensure a smooth and positive experience. Bilingual in English and Spanish, she communicates effectively with a diverse patient community, helping create a welcoming and supportive healthcare environment. Bella takes pride in contributing to high-quality patient care and fostering meaningful connections every day.
Bella is a creative and curious professional with a strong commitment to continuous learning and self-development. She values innovation, thoughtful exploration of new ideas, and meaningful personal and professional growth. With a proactive mindset and genuine enthusiasm, Bella approaches every opportunity with dedication and a passion to achieve excellence.
Rose Dungca
Patient Care Coordinator
My name is Rose Dungca, and I have over 30 years of experience in the hearing healthcare industry. Throughout my career, I have worked closely with patients in audiology practices, including serving as a Patient Care Coordinator, where I supported patients through their care and helped guide them along their hearing journey.
As a new member of the Doctors of Hearing team, I currently work as a Scheduler, assisting patients by coordinating appointments and helping ensure their experience is smooth, organized, and welcoming from their very first interaction. I understand how meaningful hearing care can be, and I take pride in being part of a team that is dedicated to compassionate, patient-centered service.
Outside of work, I am a wife, a mother of three, and a proud Lala to my granddaughter. I value the importance of family and meaningful connections, and I enjoy spending my free time with loved ones. These values carry into my work, where I strive to create a supportive, respectful, and positive experience for every patient I assist.
We are always looking for talent
Join Our Awesome Team with a Great Work Environment
Pasadena Office
Rancho Cucamonga
San Dimas Office
Our Purpose
Doctors of Hearing, Inc. is dedicated to improving the quality life of the hearing impaired community. Doctors of Hearing, Inc. is your trusted source for the information needed to make informed decisions on hearing aid purchases. Doctors of Hearing, Inc provides expert testing and proper fitting of hearing aids at a reasonable price.
Company Details
Dr. Norma Camacho Au.D CCC/A; ABA Licensed dispensing Doctor of Audiology American Boatd of Audiology Certified and ASHA Certificate of Clinical Competence (National recognition) Member of Academy Doctors of Audiology.
Phone numbers:
626 639-3182 Pasadena Office
909 481-2834 Rancho Cucamonga Office
626 250-6642 San Dimas
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