Leadership
Board Members
Improving the Mosaic experience and focusing on community needs
Mosaic is governed by a volunteer, patient-majority board of directors with representatives from Crook, Deschutes and Jefferson Counties. Board members donate their time and talent to help Mosaic continually improve our access, quality and delivery of care in Central Oregon.
Mosaic accepts applications for board members and board committee members on a rolling basis.
If you’d like to get involved, please email [email protected] for more information.

Chandra Atwood
Secretary
Patient Representative

Jeff Baker
Patient Representative

Mistilyn Gebow
Community Representative

Jim Gemelas
Patient Representative

Moises Hernandez
Community Representative

John McLaughlin
Patient Representative

Rod Ray
Chair
Patient Representative

Todd Riley
Community Representative

Nadine Sparago
Patient Representative

Jean Stevens
Patient Representative

In Memoriam
Joyce Tucker
It is with great sadness we share that longtime Mosaic patient board member (and Mosaic family member), Joyce Tucker, passed away on Mar. 12, 2022 at the age of 68. Visit our blog to learn more about Joyce’s remarkable life and contribution to Mosaic and the greater community.
Leadership
Fostering engaged and thriving employees
Our leadership team sets the strategic direction for Mosaic and its 400 staff members. Their priority is creating a culture that is warm, welcoming and responsive to employee and patient needs.

Melissa Brewster, PharmD
Director of Pharmacy

Jeremy Brown
Director of Technology and Clinical Informatics

Rachel Gerken, LPC
Director of Behavioral Health

Beau Gilmore, MD
Medical Director of Informatics

Megan Haase, FNP
Chief Executive Officer

Ken House
Director, Value Improvement

José Javier, DDS
Director of Dental Services

Elaine Knobbs-Seasholtz, MPH
Director, Strategy and Development

Jessica LeBlanc, MD, MPH
Chief Health Officer

Josie Piper
Director of Operations

Rainer Rothbacher, MA, CPA
Controller

Rachel Moore, RN
Director of Nursing

Carla Stevens, RN, MSM
Chief Operations Officer

Jennifer Stewart, SPHR
Director, Human Resources

Steve Strang, MPH, MBA
Chief Financial Officer