A Brookline physician who specializes in treating drug addiction and who faces Medicaid fraud charges was reprimanded and fined $2,500 by the state’s licensing board Wednesday for improperly seeking to have four women involuntarily hospitalized because he had heard they might be high or drunk and not because he had personally ­examined them and concluded they had psychiatric issues posing a hazard to themselves or others.

The disciplinary action against Dr. Punyamurtula Kishore, as well as his ongoing criminal case involving a drug-testing lab that he founded, involves the growing and unregulated industry of sober homes, which are mostly private rooming houses in residential neighborhoods that rent to recovering addicts.