The Pacific Clinics records consists of annual reports, financial statements, correspondence, program and grant proposals, administrative and organizational records, including those detailing relations with funding agencies or organizations. Especially prominent here is the Los Angeles County of Mental Health. Some folders contain material from more than one of the Clinics, eg, both the Child Guidance Clinic and the Guidance Clinics. Rather than disrupting the original order of the material by redistributing it into folders based on the different titles of the Clinics, the material has been left undisturbed. The series name has been assigned on the basis of which Clinic has the largest amount of material in a folder. In this way, the integrity of the collection is preserved, thereby demonstrating the continuity of the functions and activities of the Clinics, as it underwent organizational changes.

The bulk dates of the collection come from the late 1960s to mid 1970s, and from the early 1980s to early 1990s. Consequently, much of the correspondence and other papers directly concern John Mead, the director instrumental in the 1970s in the Clinics' growth, and the current CEO of Pacific Clinics, Dr. Susan Mandel.