There are a significant number of medicinal cannabis centers in Los Angeles. There are well more than 120 pot collectives out there just in the L. A. region. The huge number of the centers does not mean that a single will get marijuana available someplace in the LA jurisdiction. Though the number of medical marijuana dispensaries in this area is high, more marijuana clinics compared to Starbucks, not all are approved and risk govt prosecution if found with any amount of cannabis.