Meet Our Team

Get to know the industry experts leading our team

Rainier Clinical Research Center was established more than 30 years ago and is still operated by our original founders. Our physicians have extensive research experience and hold faculty positions at the University of Washington Medical School. From our dedicated in-house recruiting team to our principal investigators, we know what it takes to successfully conduct clinical trials.

Management team

Co-Medical Director, MD

Sheryl Marks

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Business Operations Manager

Sya Magston

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PRESIDENT & CEO, MBA

Eric Hayashi

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CLINICAL OPERATIONS MANAGER, CRC, RN

Tina Mitchell

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Co-Medical Director, MD

Frances Broyles

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CO-MEDICAL DIRECTOR, MD, FACE

Ronald Brazg

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CO-MEDICAL DIRECTOR EMERITUS, MD, PHD, FRCP, FACE

Leslie Klaff

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Interested in joining our team?

We're always looking for talented professionals.

See openings

Principal investigators

Co-Medical Director, MD

Sheryl Marks

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Co-Medical Director, MD

Frances Broyles

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CO-MEDICAL DIRECTOR, MD, FACE

Ronald Brazg

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CO-MEDICAL DIRECTOR EMERITUS, MD, PHD, FRCP, FACE

Leslie Klaff

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OD

Paul Jensen

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We are advancing medicine and ultimately changing and improving the human condition. While doing this in a warm, caring, and compassionate environment.

- Eric Hayashi, President & CEO

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