Team Members


Valerie WinbergLead Nurse Practitioner

Diana Walls Nurse Practitioner

Diana became an NP in 2003, when she graduated from Windsor University and has worked in primary care for over 10 years.  Her background includes 8 years as an RN in Emergency room nursing. She likes to work with teens.  Her favourite thing to do on her day off is go to the beach.

Amy MacLean –  Nurse Practitioner

Lana Cook Nurse Practitioner

Alaina Clarke Social Worker

Alaina obtained her Masters of Social Work from Wilfred Laurier University.  Her professional experience includes clinical counselling, child and family development, and child protection.  Alaina has been a member of TBNPLC since 2012.

Alysha Allen Health Promoter

Alysha graduated from Western University where she obtained a Bachelor of Health Science degree and minored in Psychology. After completing her degree, Alysha went on to become a trained Life Coach with the Coaches Training Institute in Toronto, ON. Alysha is passionate about all things wellness and is grateful for the opportunity to support individuals in optimizing their health and well-being through various lifestyle and prevention strategies.  She has been part of the Twin Bridges team since 2015.

Chris Laidlaw – Registered Dietitian

Rachel KilbreathRegistered Nurse

Kristen FriesenRegistered Nurse

Deb CresswellAdministrative Lead

Deb began her career with CIBC as a Finance Manager in Windsor, London and Sarnia.  She has worked in the healthcare industry, working as a Chiropractic Assistant for 8 years and in Administration Management in a Long Term Care setting for 3 years.  This broad range of experience has been well suited to the Administrative Lead role, which demands knowledge in finance, human resources, information technology and project management.

Renae Colussi – Medical Receptionist

Renae is a lifelong Sarnia resident having grown up in Bright’s Grove.  She graduated from St. Clair High School and completed the pre-nursing program at Lambton College.  She decided to explore the world and travel to Australia.  After returning from her travels, she graduated from the Medical Receptionist program in Toronto at Seneca College in 2011.  She has been working at Twin Bridges since January 2012.  She has devoted her career in helping others.