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Leadership team

Our leadership team is composed of executives who are committed to making strides in total health for our members.

In This Section

Regional and medical group leaders

California

Carrie Owen Plietz
Carrie Owen Plietz
Regional President, Northern California
Maria Ansari, MD, FACC
Maria Ansari, MD, FACC
CEO and Executive Director, The Permanente Medical Group
Michelle Gaskill-Hames
Michelle Gaskill-Hames
Regional President, Southern California
Ramin Davidoff, MD
Ramin Davidoff, MD
Executive Medical Director and Chairman of the Board, Southern California Permanente Medical Group

Colorado

Michael Ramseier
Michael Ramseier
Regional President
Jeffrey Krawcek, MD, MBOE, SPHR
Jeffrey Krawcek, MD, MBOE, SPHR
President and Executive Medical Director, Colorado Permanente Medical Group

Georgia

Pamela Shipley
Pamela Shipley
Regional President
Nkem Chukwumerije, MD, MPH, FACP
Nkem Chukwumerije, MD, MPH, FACP
President and Executive Medical Director, The Southeast Permanente Medical Group

Hawaii

Greg Christian
Greg Christian
Market President
John Yang, MD
John Yang, MD
President and Medical Director, Hawaii Permanente Medical Group

Mid-Atlantic States

Ruth E. Williams-Brinkley
Ruth E. Williams-Brinkley
Regional President
Maria Ansari, MD, FACC
Maria Ansari, MD, FACC
President and CEO, Mid-Atlantic Permanente Medical Group

Northwest

Jeff Collins
Jeff Collins
Regional President
Leong Koh, MD
Leong Koh, MD
President and CEO, Northwest Permanente
Cyrus J. Lee, DMD
Cyrus J. Lee, DMD
Executive Dental Director and CEO, Permanente Dental Associates

Washington

Angela M. Dowling
Angela M. Dowling
Regional President
Linda Tolbert, MD, JD, EdD, MPH
Linda Tolbert, MD, JD, EdD, MPH
Executive Medical Director, Washington Permanente Medical Group

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