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Welcome to Olive Tree Medical Care

Primary Care for Men, Women & Children

Compassionate, Comprehensive

Medical Care

Sara Marchessault, FNP-C provides comprehensive primary care to patients of all ages as a dedicated Family Nurse Practitioner. With compassion and efficiency, Sara serves the Klamath Falls community by offering wellness exams, diagnosis and treatment of acute and chronic illnesses, management of stable chronic conditions, and minor injuries.

Her areas of expertise include but are not limited to:

  • Annual physicals & wellness exams

  • Preventative care

  • Acute illness care & diagnosis

  • Chronic disease management

  • Women’s health exams

  • Sports physicals

  • LGBTQ+ affirming care

  • Weight-loss coaching & management

  • DOT/CMV physical exams

  • End-of-life consultation

  • On-site basic lab testing

  • In-Office procedures

Sara aims to develop meaningful partnerships with her patients through excellent communication and patient education. She promotes preventative health, well-being, and healthy lifestyle changes tailored to each patient’s unique needs.
A board-certified Family Nurse Practitioner, Sara provides patients with the highest level of professionalism, personalized treatment, and attention that she would want for her own family. She accepts most major insurance plans and welcomes new patients. Please call to schedule your appointment today.


Patient Stories

"Sara is our PCP that can be counted on to give the best level of patient care in the most caring manner. Despite the many challenges of maintaining one’s own practice, she forges ahead and delivers top care regardless of obstacles that may confront her efforts. In our book, Sara is tops on the list." 

Deanna S
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