The search landscape is undergoing a seismic shift, and healthcare brands are right in the thick of it. With the rise of generative AI tools like ChatGPT, Google Gemini, and Microsoft Copilot, traditional keyword-based search is giving way to intent-driven, conversational discovery.

For agencies and marketers in healthcare, this is not just a tech trend. It is a strategic imperative. AI-driven search tools increasingly act as the first stop for medical queries, which means brands must ensure their products are represented accurately, compliantly, and without confusion or misinformation.

From SEO to GEO. A new paradigm

To meet this new reality, a different approach is emerging. Generative Engine Optimization, or GEO, is essentially SEO for AI-driven search. While SEO focuses on ranking in traditional search engines, GEO focuses on being cited and referenced by large language models that synthesize answers from multiple sources.

In this new model, visibility means being part of the answer, not just part of the results page. GEO ensures that tools like ChatGPT and Google Gemini understand and surface brand information accurately by shaping what LLMs know and how that information is structured.

Why it matters

  • 77 percent of patients now use ChatGPT as a search engine for information.
  • Google Gemini AI Overviews appear in roughly 13 percent of all queries, with health and medical searches among the most impacted.
  • Trust signals in AI-generated summaries directly influence patient decisions.

The great decoupling of impressions and clicks

AI-generated summaries are changing user behavior. When AI overviews appear in search results, users are significantly less likely to click traditional links. This phenomenon, often called the great decoupling, means impressions and clicks no longer rise and fall together.

For healthcare brands, this requires a fundamental rethink of how success is measured and where influence truly happens.

Five core tactics for GEO success

  1. Hyper-personalize content. Use behavioral and real-time data to align content with nuanced user intent, not just keywords.
  2. Optimize for passages, not pages. Structure content into self-contained chunks that answer specific questions clearly and completely.
  3. Use GenAI and social listening. Mine platforms like Reddit and TikTok to understand real patient language and intent.
  4. Serve both humans and AI systems. Use schema, structured HTML, lists, and conversational tone while avoiding JavaScript-heavy pages.
  5. Optimize all channels. GEO pulls from many sources including social media, YouTube transcripts, and trusted third-party platforms.

Healthcare’s trust challenge

According to the 2025 Edelman Trust Barometer, patients are increasingly skeptical of institutions and are turning to digital channels for health information. This makes AI visibility a reputational challenge as much as a technical one.

What brands can do now

The IPG Health ecosystem is prepared to help clients audit how LLMs understand their brands, map real patient questions, and build content that is both human-first and AI-friendly.

Generative AI is rewriting the rules of search. For healthcare brands, GEO is no longer optional. It is foundational to staying visible, trusted, and influential in the AI-powered future of health.