Kaiser Permanente Share: Healthcare Kaiser Permanente Visit Website 1100 San Leandro Blvd. Suite 200 San Leandro, CA 94577 (510) 618-5845 (510) 618-5840 (fax) About Map About Provides quality health care for the community, promoting health and wellness for all. What's Nearby? Distance: 5 10 15 20 25 50 mi.