Experience how DDx strengthens clinical reasoning skills
Educators who use DDx immediately see its value in action — we’re confident you will too.
Explore how our interactive, AI-powered cases bring clinical reasoning to life at scale
Assess students consistently through rubric-based evaluations aligned with competencies
Enable personalized feedback and get insights to inform targeted remediation plans
Trusted by leading institutions
Strengthen clinical readiness in the age of AI
AI is reshaping how clinicians think and make decisions — accentuating the need for strong clinical reasoning skills. Faculty need the right tools to teach and assess reasoning skills effectively at scale — ensuring students stay critical, thoughtful, and ready for practice.
Built by medical professionals, DDx is the trusted, AI-powered clinical readiness platform that empowers educators to deliver consistent, engaging, and future-ready clinical reasoning training across every phase of clinical education.
Connect teaching to real-world clinical practice
The most comprehensive end-to-end clinical encounter training, built on a highly diverse, faculty-developed case library spanning common and rare conditions
Safe, simulated environment for students to practice clinical reasoning and interpersonal skills
Transparent insight into student decision-making, enabling faculty to strengthen learners’ ability to think critically and clinically
Reliable exposure to dynamic, real-world scenarios that expand and evolve with the clinical landscape
Scale and standardize instruction
200+ cases that can be incorporated into curricula
Rubric-based assessments for consistent, competency-aligned evaluation
Centralized dashboards that provide clear views of cohort and individual progress and trends
Streamlined delivery that significantly reduces administrative burden and frees faculty time
Modernize learning with AI-powered interactivity
Adaptive simulations that grow in complexity as students advance
Tools for faculty to provide personalized, targeted feedback at scale, and insights to inform remediation plans
AI that elevates clinical education — blending deep clinical expertise with advanced reasoning, analytics, and interactivity
200+
cases spanning common and rare conditions
~87%
of students report feeling more confident after using DDx
“The platform allowed the students to engage deeply within the diagnosis process and practice reasoning in a structured and interactive format. They were really, really excited that day when we were using the tool for the first time.”
Dr. Nicole Rassi, MD, FACP
Associate Professor, University of Puerto Rico School of Medicine
Build clinical reasoning with reliable assessments — scaled by DDx
DDx’s Clinical Reasoning Assessment provides a trusted, scalable way to measure and strengthen readiness, giving faculty actionable insights and students structured, competency-based feedback.
Trusted and faculty-led
Rubric co-created with leading educators, aligned to medical competencies
Transparent, reliable scoring system trusted by institutions
Alignment with accreditation and competency standards
Scalable and sustainable assessment
AI-enabled virtual cases with automated reporting and benchmarking
Cohort-level comparisons across groups and competencies
Consistent, large-scale assessment without added faculty burden
Personalized feedback that drives progress
Automated rubric-based scoring at student and cohort levels
Structured, competency-based feedback that guides improvement
Actionable insights for faculty and confidence-building feedback for learners
Explore how DDx works
Access 6 interactive, clinician-authored cases tailored to your specialty
Create a course and invite students in minutes
View completion reports to monitor engagement
Integrate knowledge and clinical reasoning
Sketchy and DDx provide educators with complementary tools to strengthen learning outcomes across the curriculum.
Applied clinical reasoning
Apply learning and assess clinical readiness
DDx case simulations allow students to practice applying knowledge in safe, structured, and realistic scenarios.
Science-backed visual learning
Teach and help boost exam scores
Narrated, interactive lessons grounded in cognitive science as well as quizzes and board-style questions help students retain concepts, engage more deeply in the classroom, and improve exam scores.
Experience how DDx strengthens core clinical competencies
Get started with a trial account to see DDx in action.
Developed by educators and credentialed clinicians
Dedicated to creating educational tools you can trust— because we understand first hand what’s at stake.
Learn more about usA product that faculty and students enjoy
Medical, Physician Assistant, and Nurse Practitioner students choose DDx to practice clinical skills in an interactive, personalized and safe environment.
Charles Drew University of Medicine and Science's Pilot of Sketchy's DDx Platform
+48%
STUDENT CONFIDENCE IMPROVEMENT
Let’s talk about bringing DDx to your program or institution
Whether you’re ready to explore a pilot, looking for full integration, or just have some questions, we’ll work with you to design the right approach for your institution.
Frequently asked questions
How does the AI in DDx work?
DDx utilizes advanced artificial intelligence architecture to create dynamic real-world simulations. The AI guides students through multi-role interactions, diagnostic processes, and treatment planning, offering real-time feedback to help develop clinical reasoning skills in a risk-free environment.
How do you account for AI accuracy?
AI responses in DDx are based on expert-vetted information to ensure realistic and clinically accurate communication. Each case goes through multiple rounds of quality assurance (QA) conducted by faculty subject matter experts (SMEs) and the DDx content team (all MDs), as well as ongoing student testing. AI responses are also updated based on validated research and faculty feedback to ensure continued accuracy and reliability.
How are cases created?
Cases in DDx are authored by practicing physicians who specialize in the relevant field and often serve as educators. Each case undergoes a rigorous review process, including internal QA by other SMEs and external QA by students, to ensure accuracy and educational value. While most cases follow a typical structure (history > physical exam > differential > orders/results > management), the presentation may vary to enhance engagement.
How can DDx be incorporated into my curriculum?
DDx can be seamlessly integrated into curricula to support case-based learning in both preclinical and clinical years. Faculty can create assignments (courses) by selecting relevant cases and sharing course links with students. These cases can be used for lectures, group discussions, or assessments. Faculty can also modify assignments, such as updating due dates, with changes automatically reflected in student accounts.
What data do you capture?
DDx collects specific user information to ensure proper access and track progress, including Student Performance Metrics, Interaction Logs, and Assessment scores.
