Whole Health Weight Loss Institute

Our team

The people who guide your journey.

From first call to one-year follow-up, you'll be cared for by the same small, dedicated team — dietitian, nurse practitioner, and front-office staff — working alongside Dr. Perryman.

The Whole Health Weight Loss Institute care team in Napa, California.
The Whole Health team — Napa, California
Portrait of Joellen Litwinko, N.P., Nurse Practitioner at Whole Health Weight Loss Institute.

Nurse Practitioner

Joellen Litwinko, N.P.

Joellen brings deep clinical expertise and a consistently upbeat, welcoming presence. As part of our multidisciplinary team, she helps patients make informed decisions about their care — and is regularly recognized with top patient-satisfaction marks.

Portrait of Kristina Williams, Office Assistant at Whole Health Weight Loss Institute.

Office Assistant

Kristina Williams

Kristina's background in human resources, business development, and management informs the way she runs the front office. Her friendly demeanor puts patients at ease from the first call onward.

Portrait of Summer Summers, Office Manager at Whole Health Weight Loss Institute.

Office Manager

Summer Summers

Summer has been the office manager at Whole Health Weight Loss Institute since the very beginning, quietly keeping the practice running with warmth, organization, and care. She's often the first friendly voice patients hear and the steady hand behind the scenes — coordinating schedules, supporting the team, and making sure every patient feels looked after from day one.

Dr. Scott Perryman, MD, FACS, FASMBS, leads the practice as CEO and lead bariatric surgeon. Read his full bio →

Care from a team that knows your name.

Virtual consultations available anywhere. Personal, time-rich care from first call through long-term follow-up.

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