Keystone First is Pennsylvania's largest Medicaid managed care health plan. Keystone First offers all of the benefits and ser ... vices of regular Medicaid, plus special programs and benefits for our members. Coverage is by Vista Health Plan, an independent licensee of the Blue Cross Blue Shield Association. Whether you’re a nurse, a marketer or a business analyst, when you join our team, you’ll touch millions of lives. If you share our values of care, compassion, and diversity; join us. And make care the heart of your work, too. Learn more about us at www.keystonefirstpa.com. read more