Orthopaedic Hospital Research Center

Sixty listings show up under Medical Research Institute for Los Angeles, which is enough that scanning the whole page rarely makes sense. Start with zip code instead. Eight of these institutes sit in 90095, and five more cluster in 90033, so if you already know which part of the city you need, those two areas narrow the field fast. From there, call two or three and ask directly about the trial, program, or service you're after, since a directory entry can only tell you so much.

Contact details are mostly filled in: 59 listings have a phone number and 58 list a website, so you can usually reach someone without digging. None of these are tagged Sponsored, because paid placement for this category hasn't launched in Los Angeles yet, so what you see is plain directory order, not anything promoted. If you run one of these institutes and notice a missing site link or wrong zip, you can claim the listing and correct it, which helps the next person searching 90017 or 90025 find you without a wasted call.