John McMahon
RID:CDI
John McMahon, RID: CDI, is a Certified Deaf Interpreter and language access professional specializing in complex communication needs, Deaf-centered access, and ASL-English communication across high-impact settings. With more than 15 years of experience, John brings a rare combination of native ASL fluency, Deaf cultural expertise, educational experience, translation skill, and professional judgment to every assignment.
His work spans educational, medical, legal/procedural, administrative, and community environments, serving individuals from early childhood through adulthood. John is especially skilled at adapting language, register, pacing, visual-spatial communication, and clarification strategies to support individuals with varied language exposure, ASL fluency, and communication needs. His approach is grounded in accuracy, cultural responsiveness, ethical practice, and the belief that true access means more than being included in the room. It means being fully understood.
Sample work
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