ADHD Online

ADHD Online is a U.S.-based telehealth company specializing in digital diagnostic and treatment services for Attention Deficit Hyperactivity Disorder (ADHD). Founded in 2018 by Zachariah Booker and Dr. Randall Duthler, the company is headquartered in Grand Rapids, Michigan, and operates across all 50 states under the umbrella of Mentavi Health.

Positioned at the intersection of mental health and digital care infrastructure, ADHD Online has built a vertically integrated platform that includes proprietary diagnostic tools, a standardized clinical review process, and licensed professionals delivering therapy, medication management, and coaching. The model emphasizes clinical rigor while offering national accessibility through asynchronous assessment and telehealth-based care.

A defining feature of the company is its commitment to evidence-based diagnostics, with all evaluations reviewed by doctorate-level psychologists. ADHD Online operates with a strong focus on compliance, clinical quality, and data security, aiming to set standards in a rapidly evolving segment of digital psychiatry.

In recent years, the company has expanded its offerings beyond core ADHD care, evolving toward a broader behavioral health portfolio under the Mentavi Health brand. It is one of the few platforms to offer diagnostic and treatment services under a unified structure, specifically tailored to ADHD and related conditions.

Keywords: ADHD Online, Zachariah Booker, Randall Duthler, Mentavi Health, digital mental health, ADHD diagnosis platform, telepsychiatry company, behavioral health infrastructure, asynchronous clinical assessment, virtual ADHD care, U.S. telehealth provider