नाम उपलब्ध है

Legit number. Kaiser Permenante, Woodbridge, Va general call out/back number. Usually to make appointments, hence them asking for DOB.

I received a call asking for my date of birth that is from doctor's office.

These are ligitament telephone numbers to contact Kaiser Permenent Medical Services

spam call and not from Kaiser. I received an Email from Kaiser today about spam calls

wrong number...asking to confirm doctor appointment