Greg began as a pioneer in Pediatric Emergency Medicine serving in leadership positions at two children’s hospitals and director of a medical group.  He has over 25 years of C-Suite experience in health plan leadership roles.  He is the former President and CEO of Blue Shield of California’s Promise Health Plan serving over 500,000 Medicaid members. He previously served as the CEO that launched Centene’s first Medicaid Managed Care Plan in California and later as CMO of HealthNet’s 4 million members.  Greg was a founding executive for CalOptima, a public managed care organization.

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