The roots of the LOS angeles DIDI hirsch psychiatric service DBA DIDI hirsch mental health services ("dhmhs") extend back to the 1930s, when a group of women funded psychiatric care for people whose lives were devastated by the depression. Beginning with just $5,000, and space provided by cedars of lebanon hospital, in 1942, these philanthropic pioneers formally incorporated as a 501(c)(3)-the first freestanding nonprofit outpatient clinic for adults in LOS angeles county.today, DIDI hirsch mental health services provides compassionate mental health, substance use, and suicide prevention services to individuals and families, especially in communities where discrimination and injustice limit access.