Yes their centralized blockchain can pass your medical data to any third party service provider, such as advertisers, a money lender, or an insurer, who partners with them. They have a loose interpretation of the definition of privacy. We can call them "third-party needs" to see your medical data.

QMC HEALTHID works with those having "first-party needs" to see your private data, your employer, your personal doctor, your airline flight, your rock concert. These need only your health status today.