Brian D. Pieninck Takes the Helm as CEO of GuideWell Starting October 1
Brian D. Pieninck Takes the Helm as CEO of GuideWell
In a significant shift in leadership, GuideWell Mutual Holding Corporation has announced the appointment of Brian D. Pieninck as its new president and CEO, set to cascade into effect on October 1, 2025. Pieninck, who has proudly led CareFirst BlueCross BlueShield as its president and CEO, brings to GuideWell a wealth of experience and a profound understanding of the health insurance landscape.
Pieninck's previous tenure at CareFirst saw him at the forefront of operations, overseeing a large team and serving millions across Maryland and Virginia. His role gave him not just operational insight, but also a deep connection to the community—a core component of healthcare that he vows to uphold at GuideWell.
He will take over from Pat Geraghty, who successfully led the organization for 14 years. Under Geraghty, GuideWell transformed from an $8 billion health insurance provider into a formidable $32 billion health solutions company, now serving more than 38 million members across the United States, Puerto Rico, and the U.S. Virgin Islands. This rapid growth was a result of a strong corporate culture cultivated by Geraghty, earning the company accolades as a
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