Hewto.ai
Free tool · Fake Patient Generator

Fake Patient Generator for Testing

Generate synthetic patient records in one click — realistic names, dates of birth, member IDs, group numbers, never-issued SSNs, addresses, and fictional phone numbers for development, QA, training, and demos. Bulk up to 100 with JSON and CSV export. Free, no signup, nothing stored.

For testing only. These records are randomly generated and belong to no real person. Never use them on a real claim or any HIPAA-covered transaction.

Generated in your browser — nothing is sent to or stored on our servers.

Under the hood

Built to be realistic — and provably fake

Every field is chosen so records behave like real patient data in your forms and pipelines, while being mathematically impossible to confuse with real people:

  • SSNs use the 900–999 area range the SSA has never issued — guaranteed unassigned
  • Phone numbers use the 555-01xx range reserved for fiction
  • Member IDs and group numbers follow common payer formats
  • Names drawn from common US first/last name lists, matched to gender
  • Uniqueness guaranteed within every batch
{
  "first_name": "James",
  "last_name": "Smith",
  "gender": "Male",
  "dob": "1962-04-17",
  "member_id": "MB482017365",
  "group_number": "GRP012847",
  "ssn": "900-42-1177",
  "phone": "(312) 555-0148",
  "address": "1042 Maple Dr",
  "city": "Springfield",
  "state": "IL",
  "zip": "62701"
}

Pair with our Fake NPI Generator to assemble complete synthetic CMS-1500 or 837P test claims — patient, subscriber, and provider identifiers, all fake, all realistic.

Why synthetic data

Realistic patient data, zero PHI risk

Development & QA

Populate dev and staging databases, test claim intake and 837 generation, and run clearinghouse onboarding without a single real patient record.

Pipeline testing

Feed realistic subscriber and patient demographics through extraction, validation, and adjudication pipelines so tests behave exactly like production.

Training & demos

Teach billing staff and demo products with realistic-looking patient records — keeping PHI out of classrooms, screenshots, and slide decks.

Building a full test claim? Generate the patient here, grab a rendering and billing NPI from the Fake NPI Generator, and validate any real NPIs with the NPI Validator.

Fake patient generator FAQ

Common questions about synthetic patient data

Ready to see Hewto.ai on your documents?

Book a personalized demo and watch us process your HCFA, UB-04, and dental claims live.