Clear communication is a cornerstone of quality healthcare, and for Deaf and Hard-of-Hearing patients, that means having access to a qualified ASL interpreter. In medical settings, ASL interpreters help patients fully understand their care, ask questions, and make informed decisions. However, not every interpreter is equipped to meet the demands of clinical environments. Medical interpreting requires calls for specialized training, professionalism, and experience. When selecting an interpreter for healthcare settings, consider the following qualities.
For skilled interpreters experienced in medical settings, HIS Sign Interpreting is your trusted partner. By choosing HIS Sign, your healthcare facility can meet accessibility standards and support better patient outcomes. Individuals and organizations can call (877) 458-7408 to request in-person and video remote ASL interpreting services near you.
1. ASL Interpreter Certification and Formal Training
Interpreting is a specialized skill, and certification is the foundation. Look for interpreters who hold credentials from recognized bodies such as the Registry of Interpreters for the Deaf (RID). This certification indicates that an interpreter has met rigorous standards in language proficiency and ethical practice.
At HIS Sign, we take qualification a step further. All interpreters seeking to work with us undergo a rigorous screening and ASL evaluation process before being approved to serve our customers. Our evaluations include a performance assessment of signing and voicing skills across 3 different interpreting scenarios, along with a review of ethical reasoning and critical thinking abilities. We also conduct a comprehensive background check on every interpreter to ensure the quality and reliability of our services.
2. Knowledge of Medical Terminology

An effective medical interpreter must be fluent not only in ASL and English but also in clinical language. From anatomy and pharmacology to procedures and diagnoses, they must be able to interpret accurately without pausing to find the right signs—or worse, guessing.
Interpreters who lack this knowledge can introduce confusion, delay care, or compromise a patient’s understanding of their condition or treatment. Seek interpreting professionals who have demonstrated familiarity with medical vocabulary and who continue to stay updated on evolving terminology through continuing education or experience.
3. Experience in Healthcare Settings
There’s no substitute for hands-on experience in interpreting. ASL interpreters with virtual or in-person experience in hospitals, clinics, and specialized care settings bring a depth of understanding that classroom training alone cannot provide.
They are more adept at navigating provider workflows, understanding patient confidentiality protocols, and managing complex communication scenarios such as surgical consultations or mental health assessments. Selecting an interpreter who is new to medical settings increases the risk of miscommunication, particularly in emergency situations.
4. Professionalism and Poise Under Pressure
Medical appointments involve sensitive topics, emotional moments, and urgent decisions. The interpreter must remain calm, clear, and respectful, regardless of the situation. Professionalism entails arriving on time, maintaining clear boundaries, and collaborating effectively with patients and medical staff. Furthermore, they know how to support the flow of communication while remaining neutral and composed.
5. Flexibility and Responsiveness
In healthcare, schedules change, emergencies happen, and providers need support on short notice. A reliable medical ASL interpreter should be able to adapt quickly, respond promptly, and show a willingness to work within the demands of a medical setting.
HIS Sign delivers seamless, around-the-clock interpreting services to meet the demands of any schedule or situation. Our team provides reliable virtual support 24 hours a day, 7 days a week, 365 days a year, ensuring clients have access to qualified professionals for last-minute requests. We respond quickly and accurately to support clear, effective communication across healthcare, education, legal and business sectors. With HIS Sign, you can count on expert interpreting whenever and wherever you need it.
Partner with an ASL Interpreter Your Patients Can Trust in Washington, DC
HIS Sign is located in the Washington, DC, metro area and offers certified ASL medical interpreting services across the United States. Our interpreters are trained to support clear, accurate, and compassionate communication in a wide range of clinical environments. In addition to medical settings, we also offer on-site and virtual ASL interpreting services for offices, legal proceedings, and events. Call (877) 458-7408 to learn more or to request a medical ASL interpreter.
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