Our Pathologists’ Assistants

Pathologists’ Assistants are highly-trained, nationally certified professionals who provide critical services in the practice of pathology and diagnostic medicine. Learn more at the American Association of Pathologists’ Assistants.

David Masessa

Pathologists’ Assistant

David Masessa is a Nationally Certified Pathologists’ Assistant. He began working in Pathology at the Sacramento County Coroners Office in 1987 and relocated to Oregon in 1998.

In his off time he enjoys racing his bicycles and traveling.

Education and Training
Undergraduate 1991

California State University, Sacramento

Graduate School 1994

Quinnipiac University, Hamden, Connecticut

Amanda Gallatin

Pathologists’ Assistant

Amanda Gallatin is a Nationally Certified Pathologists’ Assistant. She became interested in anatomy as an undergraduate and pursued a career in pathology allowing her a hands-on approach.

In her leisure she enjoys exploring the Oregon outdoors, swimming and reading.

Education and Training
Undergraduate 2006

University of Illinois at Urbana-Champaign, Illinois

Graduate School 2008

Rosalind Franklin University Medicine and Science, Illinois

Reena Van Duzer

Pathologists’ Assistant

Reena Van Duzer is a Nationally Certified Pathologists’ Assistant. She is a native to the Rouge Valley completed her undergraduate degree at Southern Oregon University where her interest in pathology began.  Outside of work she enjoys spending time with her family at home or exploring the Pacific Northwest.

Education and Training
Undergraduate 2017

Southern Oregon University, Ashland, Oregon

Graduate 2021

IUPUI/Indiana University School of Medicine, Indianapolis, Indiana