Anas Rihawi, MD, MPH

Sleep Specialist

Dr. Anas Rihawi, MD, MPH is a board‑certified sleep medicine physician who practices pulmonary and critical care medicine at Oregon Health & Science University. He trained at St. Elizabeth’s Medical Center in Boston and the University of Arizona. Dr. Rihawi holds a Master of Public Health degree from Johns Hopkins University and is an active member of the American Academy of Sleep Medicine. Through his collaboration with Oregon Sleep Associates, Dr. Rihawi delivers attentive, high‑quality sleep care with a focus on patient well‑being and an exceptional experience.

Matthew Keeslar, PA-C
Physician Associate

A former actor who successfully transitioned into a career as a certified Physician Assistant (PA-C) and medical instructor. Born in 1972, he is known for his roles in films like Waiting for Guffman, The Last Days of Disco, and Scream 3, as well as the sci-fi dramedy The Middleman.

After a decades-long career, Keeslar retired from acting in 2010 to pursue science. He graduated Phi Beta Kappa from Reed College with a biology degree in 2014, following initial coursework at Portland Community College. He went on to earn a Master of Physician Assistant Studies from Oregon Health & Science University (OHSU).

 Now a practicing clinician in Oregon, Matt also served as an instructor at the OHSU School of Medicine. He has worked in urology and men's health, urgent care, and pediatrics.