Ask AI about your health
the safe way
Millions of people now ask AI chatbots about symptoms, lab results and medicines. As an ER physician and author of books on AI in healthcare, I want you to get the most out of it without getting hurt. This free builder writes a safer prompt for you, and tells you when to skip AI and get care.
Prepare, do not diagnose
The best use of AI is getting ready for your visit: what to ask, what words mean, what to track.
Protect your privacy
Describe yourself by age range and symptoms. Leave out names, dates of birth and record numbers.
Verify everything
Ask the AI for its reasoning and sources, then check with your doctor or pharmacist before you act.
Do not ask AI. Call 911.
- Chest pain or pressure
- Stroke signs: face droop, arm weakness, speech trouble
- Trouble breathing
- Thoughts of suicide: call or text 988
- Severe bleeding, or a head injury on a blood thinner
Built by DR GPT™
I am Harvey Castro, MD, MBA, a board-certified emergency physician who has written books on ChatGPT and healthcare since 2023. I wrote this page for my patients and yours.
Be ready before you need it
More free tools I built for patients and families.
Lock-screen medical ID
Free. Your allergies, medicines and emergency contact on your phone's lock screen, so a paramedic can read them if you cannot talk.
Make my free medical IDER wait times near you
Typical ER visit times for hospitals near your ZIP code, from public Medicare data.
Check by ZIP codeFind a micro hospital
Addresses and phone numbers for micro hospitals near your ZIP code.
Find one near meER, freestanding ER or urgent care?
Where to go for what, what each one costs, and your rights on a surprise bill.
Help me chooseStayed overnight but not admitted?
What "observation status" means for your bill and Medicare.
Learn the differenceFree tools from DR GPT™ Labs by Harvey Castro, MD, MBA. Education only, not medical advice. In an emergency, call 911.
Written and medically reviewed by Harvey Castro, MD, MBA, board-certified emergency physician. Last reviewed October 25, 2026.