Blue Shield of California Welcomes New Executives
On November 18, 2025, Blue Shield of California announced key additions to its leadership team. Gary Culp has been appointed as the new Senior Vice President of Government Markets, while Greg Siebert assumes the role of Senior Vice President for Provider Partnerships and Network Management. These strategic moves are a part of the organization's ongoing mission to create a healthcare system that is not only affordable but also worthy of its members and communities.
Culp comes to Blue Shield with a vision to transform government healthcare programs that cater to more than 1.7 million members across diverse demographics, from young children to seniors. His responsibilities will include overseeing essential programs such as Medicare, Medi-Cal, and Individual and Family Plans. Culp expressed his commitment to enhancing the strength and affordability of these plans by building solid relationships with industry and community partners. He believes that a focus on improving member experiences is crucial for sustainable growth in these programs.
In a statement about his new role, Culp said, “Blue Shield’s commitment to equitable healthcare access is essential for the future of health care. I’m eager to collaborate with a team that shares a deep commitment to building a better, more affordable healthcare system.” This highlights his strategic approach to governance within the organization, aiming to address the growing needs of California’s diverse population.
Meanwhile, Siebert brings a wealth of experience in establishing robust partnerships with healthcare providers such as hospitals and primary care physicians. His expertise will be crucial in enhancing care quality while simultaneously reducing costs for Blue Shield members. “Greg's ability to connect with people and facilitate tough negotiations will play a vital role in executing our mission,” noted Deneen Vojta, MD, Executive Vice President for Healthcare Quality and Affordability at Blue Shield.
Siebert’s focus will not only be on improving existing relationships but also on modernizing Blue Shield's internal systems for greater efficiency. The healthcare landscape is ever-evolving, and having a leader who advocates for integrating digital solutions and innovative care delivery approaches is a vital asset. Siebert stated, “Blue Shield is in a unique position to partner meaningfully with medical professionals and organizations aiming to enhance members’ healthcare experiences and outcomes.”
The appointments of Culp and Siebert signify Blue Shield’s unwavering commitment to fostering a healthcare environment that is inclusive and beneficial across all demographics. Both executives share a common goal: to elevate California's healthcare system to a standard that families can rely on for their wide-ranging healthcare needs.
Founded in 1939 and headquartered in Oakland, California, Blue Shield of California is not only a nonprofit member of the Blue Shield Association but also a taxpaying entity committed to serving its 6 million members with integrity and transparency. With an annual revenue exceeding $27 billion and over 6,500 employees, Blue Shield has substantially impacted the state’s communities, contributing over $60 million to the Blue Shield of California Foundation within a mere three years.
As Culp and Siebert step into their new roles, their collective expertise and commitment to healthcare improvement will undoubtedly drive Blue Shield of California toward a brighter future marked by health equity and systematic care.
For ongoing updates from Blue Shield of California, one can visit their official news website at
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