Draft:Doctorina

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Doctorina is an AI-powered digital platform designed to help users better understand healthcare topics, organize their health-related inputs, and explore potential directions for further research into their conditions.:[1]

In response to concerns about digital health possibly deepening inequity, Darya Tsaryk emphasized a different framing: “When startups say digital technologies ‘democratize access,’ they mean… the ability to step outside this dependency [on traditional systems]… It’s someone who needs to understand their condition and cannot immediately reach a clinician.”[2]

Founded with the mission to address the global healthcare access gap, Doctorina leverages artificial intelligence to simulate clinical reasoning, conduct structured medical triages, and deliver personalized health advice. The platform operates as a "medical operating system," transforming general AI models into functional digital doctors capable of handling consultations in any language, 24/7.

Available via web at app.doctorina.com, a Telegram bot (@ask_doctorina_bot), and mobile apps on the App Store and Google Play. When asked why Doctorina expanded into Telegram rather than keeping all functionality in a standalone app, one of the co-Founders, Dr Hanna Melini, explained that the choice was strategic: “Telegram stood out for… global reach in regions where people rely on lightweight, cross-platform messengers rather than installing another app.” [3] This reflects a deliberate effort to reduce access barriers and reach users in diverse contexts where installing a new application might be impractical.

Doctorina emphasizes structured symptom elicitation over conversational chatbots, aiming to uncover hidden symptoms that are often missed in free-text interactions. It is not a medical software, service, or device but a tool for informational purposes, with disclaimers advising users to consult professional healthcare providers.

Doctorina's core mission is to deliver AI-assisted healthcare to over 5 billion people who lack access to human doctors, while also reducing medical errors that affect even those with access. [4] According to the platform's documentation, 5 billion individuals worldwide face barriers to healthcare due to scarcity, high costs, time limitations, and human error proneness. In the U.S. alone, medical errors are cited as a top-3 cause of death, killing approximately 250,000 people annually. Doctorina positions itself as a solution to these issues by offering radically cheaper consultations (less than 1% of traditional doctor visit costs), instant availability, and error-minimized diagnostics.

At its foundation, Doctorina is engineered to bridge the gap between general-purpose LLMs, which excel at analyzing provided information but struggle with proactive discovery, and real clinical practice. The system conducts systematic clinical reasoning through a structured triage pipeline that deterministically surfaces clinically relevant symptoms not inferable from casual input. This replaces reactive conversational inference with a deterministic process, ensuring comprehensive history-taking and symptom elicitation.[5]

Doctorina,  is a  system that goes beyond a single conversational model by implementing real clinical logic through an agent-based architecture. The system mirrors how a real physician reasons. This keeps the doctor logic structured, auditable, and adaptable as medical complexity grows.

Doctorina's clinical quality is validated through a production-grade evaluation engine, achieving:

• 94% sufficient history-taking,
• ~91% correct and complete diagnoses,

In benchmarks evaluations, Doctorina achieved 92% accuracy in clinical case assessment. When evaluated on the same patient cases, general-purpose language models achieved approximately 63% accuracy, while human physicians achieved about 62%, in line with USMLE-type assessments. The results highlight the impact of structured clinical triage and guided reasoning when applied to identical clinical scenarios.

Discussing ethical safeguards, Melini noted that at the beginning of every interaction, Doctorina emphasizes what it is and is not: “From the very first interaction, we explain what Doctorina is (a medical guidance system) and what it is not (a replacement for in-person consultations).” [6] This illustrates the platform’s approach to balancing user experience with transparency about its role.

Product-Market Fit and Growth

Doctorina has demonstrated strong validation through organic growth:

• 17.8-20.2% 30-day rolling retention (1 in 5 users becomes long-term),
• 36% monthly active user (MAU) growth with zero paid acquisition,

Doctorina is led by a multidisciplinary team:

• Hanna Melini, MD: Founder and Chief Medical Officer; former Director of Health & Help.
• Darya Tsaryk: Founder and CEO; founder of Mygenome.
• Yury Melnichek: Founder and Investor; associated with Maps.Me (acquired by VK), AIMATTER (acquired by Google), and Vochi (acquired by Pinterest).
• Alexander Seletsky: Founder and COO; ex-COO at CloudDC.

The team comprises engineers, doctors, lawyers, and entrepreneurs focused on interdisciplinary innovation.

Doctorina collaborates with a range of organizations to expand its impact [7]

• AWS: Supports cloud infrastructure, AI tools, and scalability.
• Altair Capital: International early-stage venture investor.
• Medical School Berlin: Accredited university in medicine, health sciences, and psychology.
• Medonations: Nonprofit for free medical aid, medications, and education.
• Municipio de Cotzumalguapa: Local government partner in Guatemala for community well-being.
• Fundación Wawakuna: Supports indigenous health programs.
• Standing Committee on Medical Education of UPCH: #1 medical university in Peru.
• Holberton Coderise: Global tech academy in software, AI, and digital skills.
• AppDoctors: Healthtech platform with AI diagnostics and verified professionals.
• FullSalud: Digital solutions for comprehensive medical services.
• DragonFamily: Educational platform for family development.
• Universidad Católica San Pablo: Leading in tech, engineering, and medicine.
• El Directorio: Connects social organizations in Guatemala.
• Atrévete Emprende: Supports cancer patients via entrepreneurship.
• Aroma Sinchi Warmi: Wellness initiative for emotional and physical balance.