How do i contact kaiser permanente insurance? Kaiser Permanente plan members: 1-800-297-6877 Alliant and Options plan members: 1-800-910-8884 East of the Cascades: 1-800-287-2210,ext. 2575Where are the kaiser offices? As our largest office worldwide, Kaiser DC provides all of our service offerings and covers all of our industry sectors. The London office is the hub of Kaiser’s operations throughout Europe. The São Paulo Office is the headquarters of Kaiser’s Latin American business and serves clients throughout South America.Why choose kaiser consulting? Kaiser consultants are fluent in 20+ languages, allowing us to distill deep insights through in-person primary research in niche markets around the world. As our largest office worldwide, Kaiser DC provides all of our service offerings and covers all of our industry sectors.Why choose discover kaiser permanente orange county? Discover Kaiser Permanente in: Orange County offers care and coverage, together, to help make life easier. Combining cutting-edge technology with a focus on prevention, Kaiser Permanente Orange County puts you and your health at the heart of everything we do to help you get healthy, stay healthy, and thrive.