Professional Affiliations


Virginia Mason Medical Center

Otolaryngology Voice Clinic


The Voice Clinic at Virginia Mason specializes in the evaluation and management of voice, airway and swallowing disorders. Exercising the highest standard of care, Clinic Staff diagnose and treat patients with medical, surgical and voice therapy techniques.  To that end, the Clinic utilizes the most effective means and modern diagnostic technology currently available, e.g., videostroboscopy, etc. – for the benefit of their patients.

Voice Clinic staff members include:

Jaime I. Chang, MD, Laryngologist
Yumi Sumida, CCC-SLP, Speech Pathologist


In the wake of treatment, it is the desire of the Voice Clinic staff to safeguard and perpetuate their patient's continued good vocal health so that injury does not reoccur.  To serve that goal, Carolena Mátus is a collaborative partner with the Clinic for the benefit of their professional voice use patients. These patients include singers, actors and public speakers recovering from surgery, vocal injury and other issues who wish to continue healthy vocal development to support their singing and other vocal goals on a professional level.



National Association of Teachers of Singing


Founded in 1944, National Association of Teachers of Singing, Inc. (NATS) is the largest professional association of voice teachers in the world.

NATS Mission Statement

To encourage the highest standards of the vocal art and of ethical principles in the teaching of singing. And to promote vocal education and research at all levels, both for the enrichment of the general public and for the professional advancement of the talented.

Carolena Mátus holds Full Member standing in NATS.


The National Association for Catering and Events


Founded in 1958, NACE is the oldest and largest catering and events association in the world, encompassing all aspects of the industry. Dedicated to promoting career success for its members and the professionalism of the industry, NACE offers educational programs, professional certification, chapter initiatives, networking opportunities, recognition and awards programs, a job bank, community service projects and the industry’s most prestigious annual conference. In helping its members enhance their business and careers, NACE helps the industry reach its highest potential.

Carolena Mátus holds Professional Member standing in NACE and sits on the Board of Directors as the Communications Chair.