The term "Michael Chang (bishop)" does not correspond to a widely recognized or documented religious figure in available ecclesiastical records or mainstream encyclopedic sources as of the current knowledge base. No verifiable information confirms the existence of an individual named Michael Chang who holds or has held the official title of bishop within major Christian denominations such as the Roman Catholic Church, the Anglican Communion, or significant Orthodox or Protestant traditions.
The name "Michael Chang" may be a conflation with other public figures, such as Michael Chang, the former professional tennis player, though there is no known association between that individual and the clergy. The use of the name "Michael Chang" in a religious context may reflect a fictional, local, or unofficial reference not documented in authoritative sources.
Given the lack of reliable references, "Michael Chang (bishop)" cannot be confirmed as an established figure in religious or historical records. Further information would require substantiation from credible, published sources.