According to HHS incident listing[1], the are a Business Associate. This means they handle patient data because they are contracted to do so by a HIPAA-covered entity. I've never heard of Cerebral before (and hopefully I won't again), but that likely means that their customers are the hospitals.
Cerebral is a mental health therapy app, but unlike most apps, they also prescribed medicine until very recently. They stopped after the FDA started investigating them for being a pill mill for schedule II controlled substances like adderall (ie amphetamine salts)
https://www.theverge.com/2022/5/9/23063356/cerebral-teleheal...
You can however, circumvent the spirit of HIPAA and what most people would expect for data privacy by "deidentifying" your data and monetizing it in one of many ways which are wholly inadequate and usually reversable without much effort.