I did some digging around myself Jun 26, 2019, of
Post# of 85487
Doc Owns Number 22 on this list which is one of the subsidiaries of UNVC...
22. Health Resources Inc...204 Million Dollars
https://www.blackenterprise.com/be100s/top100/
That list came out around June of last year. This is speculation by me but if they follow the same pattern that list should be out sometime in June also. Just a theory.