I also work in health care, and also am using JSON columns in Postgres to store some "schemaless" (in the sense that the schema is not fixed in advance and subj

I also work in health care, and also am using JSON columns in Postgres to store some "schemaless" (in the sense that the schema is not fixed in advance and subject to change over time) data in a convenient way. There's a serialization mapper that turns it into a normalized structure for some types of consumption, but the source of truth is the JSON column and the normalized structure is generated from it.