  Blockchain as a digital ledger for keeping records of digital transactions
and other information, it is secure and decentralized technology. The globally
growing number of digital population every day possesses a significant threat
to online data including the medical and patients data. After bitcoin,
blockchain technology has emerged into a general-purpose technology with
applications in medical industries and healthcare. Blockchain can promote
highly configurable openness while retaining the highest security standards for
critical data of medical patients. Referred to as distributed record keeping
for healthcare systems which makes digital assets unalterable and transparent
via a cryptographic hash and decentralized network. The study delves into the
security and safety improvement associated with implementing blockchain in
AI-based healthcare systems. Blockchain-enabled AI tackles the existing issues
related to security, performance efficiencies, and safety in healthcare
systems. We have also examined the Artificial Intelligence in healthcare and
medical industry, potential areas, open questions concerning the blockchain in
healthcare systems. Finally, the article proposed an AI-based healthcare
blockchain model (healthAIChain) to improve patients data and security.
