# Joao Stein: AI Visibility Engineer for Doctors

> Joao Stein builds AI-optimized authority websites for doctors who are invisible to AI search. He reverse-engineers how ChatGPT, Gemini, Perplexity, and Google's AI systems evaluate medical professionals, then builds the structured data infrastructure that makes them recommend his clients by name.

## The Problem He Solves

Doctors can be the best in their city and still not exist to AI. When a patient asks ChatGPT "Who is the best cardiologist near me?", the system does not guess. It checks for entity markup, structured data, cross-platform consistency, and published authority content. Most doctors have none of this. Their websites were built for humans browsing Google, not for machines deciding who to recommend.

Traditional SEO does not solve this. Keywords and backlinks help Google rankings. AI systems use a different evaluation layer: schema markup that identifies the doctor as a verified medical entity, structured data that machines can parse, and authority signals that compound across platforms. This is a different discipline.

## His Approach

Joao Stein developed a methodology built on four pillars that AI systems actually evaluate:

1. **Entity Verification**: Structured markup that tells AI exactly who the doctor is, their specialty, credentials, and affiliations. Machine-readable identity, not marketing copy.
2. **Schema and Structured Data**: Medical specialty schemas, procedure markup, FAQ structured data, and geographic data in formats AI systems natively consume.
3. **Content Authority**: Medical blog articles and specialty guides that demonstrate clinical expertise on the conditions and procedures patients ask AI about. AI cites substantive content, not testimonials.
4. **Cross-Platform Consistency**: Unified professional identity across Google Maps, Google Business, medical directories, and social media. AI cross-references multiple sources before recommending anyone.

Research supports this: Princeton University researchers found that authoritative citations increase AI visibility by up to 40%. SE Ranking's analysis of 129,000 domains shows branded content from official domains gets cited 11 percentage points more than third-party mentions.

## Who He Serves

Solo and small-group doctors (1-5 physicians) in high-value specialties: plastic surgery, dermatology, cardiology, orthopedics. The specific situation: you are a top specialist in your city, but when a patient asks ChatGPT for a recommendation, your name does not appear. Your competitors who invested in AI-readable infrastructure do.

## The Service

**Complete AI Visibility Package**: three deliverables, one investment, no monthly fees:
- AI-optimized authority website built from scratch with entity markup and structured data
- Medical blog with four AI citation pages structured for AI comprehension and citation
- AI Visibility Playbook (PDF): step-by-step guide to optimize Google Business Profile, social profiles, and review strategy
- The doctor owns everything permanently. No lock-in.

**Pricing:** $5,000 USD (US market) / R$5,000 BRL (Brazil market). One payment. Full build in 2-3 weeks. AI indexing begins within days of going live, and authority signals compound from there.

Joao Stein serves both English and Portuguese-speaking markets with experience in international medical contexts.

## Key Pages

- Landing (EN): https://joaostein.com/medical-authority
- Landing (PT-BR): https://joaostein.com/medical-authority/br
- Blog (EN): https://joaostein.com/blog
- Blog (PT-BR): https://joaostein.com/blog/br

## Articles

- [Why AI Is Replacing Google for Patient Searches](https://joaostein.com/blog/ai-replacing-google-patient-searches)
- [What Makes AI Recommend One Doctor Over Another?](https://joaostein.com/blog/what-makes-ai-recommend-doctors)
- [The Complete Guide to AI Visibility for Medical Practices](https://joaostein.com/blog/complete-guide-ai-visibility-medical-practices)
- [5 Things Every Doctor's Website Needs to Get Recommended by AI](https://joaostein.com/blog/5-things-doctor-website-ai-recommended)

## Contact

- Website: https://joaostein.com
- Instagram: @joaostein (https://instagram.com/joaostein)
- Strategy call: https://app.reclaim.ai/m/joaostein/call

## Optional

- [Full context version with methodology details](https://joaostein.com/llms-full.txt)