Spencer Derek Dalton, MD | Kaiser Permanente

San Diego's oncology category lists 32 practices, but the count alone doesn't tell you who picks up the phone. Thirty-one of these listings include a phone number, and 22 show a website, so most entries give you a real way to reach out before you show up. Zip 92123 carries nine of the listings, the heaviest cluster in the city, while several other zips list just one or two practices each. That spread matters if you're comparing distance against how much contact info a listing actually shows.

Nothing here carries a Sponsored marker, since paid placement for this category hasn't been switched on in San Diego, so you're seeing the directory's plain default order rather than anything boosted. If you manage one of these practices and the phone or website field is missing, you can claim the listing and fill it in, which helps a patient in a lighter-coverage zip find you instead of scrolling past a blank entry. Call two or three that fit your area before settling on one.