JOHNSTON, CRAIG S

Johnston, Craig S provides specialized vocational rehabilitation expertise to federal agencies, primarily serving as an expert witness in Social Security Administration hearings. The contractor delivers authoritative testimony on vocational capacity, labor market conditions, and functional limitations to support administrative law judges in adjudicating disability benefit appeals. This work requires deep familiarity with SSA’s disability determination framework, including the Medical-Vocational Guidelines (Grid Rules), RFC assessments, and occupational classification systems such as the DOT and O*NET. Their technical proficiency lies in translating complex medical and vocational data into legally defensible testimony, ensuring alignment with federal adjudicative standards and procedural requirements. The contractor’s primary agency relationship is with the Social Security Administration, where they support the appeals process by offering impartial, evidence-based vocational analysis in contested benefit cases. Their engagement is focused on high-stakes administrative hearings, contributing to the integrity and efficiency of SSA’s disability determination system through subject-matter expertise rather than administrative or operational services. The contractor operates under NAICS 624310, which encompasses vocational rehabilitation services—specifically, the provision of expert analysis and testimony to evaluate an individual’s ability to engage in substantial gainful activity. This places them in a niche vertical focused on disability adjudication support, serving a critical function within the federal benefits system that demands precision, objectivity, and regulatory fluency. Johnston, Craig S operates as a sole proprietorship (Entity Structure 2J) based in Evanston, Illinois. The contractor holds no formal government certifications, and their market positioning is defined by specialized, high-impact testimony rather than broad service delivery. Their geographic presence is localized, but their impact extends nationally through federal hearing systems, establishing them as a trusted subject-matter expert in vocational rehabilitation within the administrative law context.