Joshua Ellenhorn, M.d., Facs

Los Angeles shows 114 oncology listings, but the number alone doesn't tell you much. Look closer: 109 of those come with a phone number, and 81 list a website, so most entries give you a real way to reach someone rather than just a name. Zip 90027 alone accounts for 20 of the listings, so if you're searching from that part of the city, expect a longer list to scroll through than in most other zips nearby.

None of these listings carry a Sponsored tag yet, since this category hasn't opened up paid placement, so the order you see is plain and unranked, not anyone's featured spot. If you run one of these practices and the phone number or website field is wrong or missing, you can claim the listing and correct it yourself, which matters when someone in Los Angeles is trying to reach the right office quickly. Call two or three from the list to confirm they're accepting patients before you commit to one.