Columbia Memorial Hospital
Columbia Memorial Hospital has partnered with OHSU to bring board certified emergency medicine physicians to their emergency department in Astoria. OHSU is providing medical directorship to help achieve CMH's quality, safety and patient satisfaction goals in the Emergency Department.

Shannon Berry, M.D.
(she/her)
Assistant Professor, Department of Emergency Medicine

Charles "Chad" Brown, M.D.,
(he/him)
Assistant Professor, Department of Emergency Medicine

Robert (Drew) Davee, M.D.
(he/him)
Assistant Professor, Department of Emergency Medicine

Edward "Eric" Holden, P.A.-C.
Clinical Associate, Department of Emergency Medicine

Kristin Hooper, A.P.R.N., F.N.P.-C.
(she/her)
Clinical Associate, Department of Emergency Medicine

Timothy Janchar, M.D.
Assistant Professor, Department of Emergency Medicine

Amy Josephson, P.A.-C.
(she/her)
Clinical Associate, Department of Emergency Medicine

Avery Kechter, M.D.
(he/him)
Assistant Professor, Department of Emergency Medicine

Emily Mollenkopf, N.P.
Clinical Associate, Department of Emergency Medicine

Regina Mysliwiec, M.D., M.S
Associate Professor, Department of Emergency Medicine

Leonie Oostrom-Shah, M.D.
Assistant Professor, Department of Emergency Medicine

Paul Silka, M.D., M.H.A.
Associate Professor, Department of Emergency Medicine
Medical Director, Columbia Memorial Hospital Emergency Department

Sachi Patel, D.O.
Assistant Professor, Department of Emergency Medicine
Colin Prather, M.D.
Assistant Professor, Department of Emergency Medicine

Andrew Richards, M.D.
(he/him)
Assistant Professor, Department of Emergency Medicine

Ramsey Selbak, M.D.
Adjunct Assistant Professor, Department of Emergency Medicine

Michael Triller, M.D.
(he/him)
Assistant Professor, Department of Emergency Medicine

Juan Camilo Vanegas, M.D.
Assistant Professor, Department of Emergency Medicine

Emma Williams, P.A.-C.
(she/her)
Clinical Associate, Department of Emergency Medicine

Melissa Willitzer, PA-C
(she/her)
Clinical Associate, Department of Emergency Medicine
System Lead Advanced Practice Provider, Department of Emergency Medicine

Amanda Whipple, M.D.
(she/her)
Assistant Professor, Department of Emergency Medicine