Contact Us

EMS Program Supervisor
Jonathan Chin
is Washington County's EMS Program Supervisor. Jonathan holds a master's degree in Emergency Health Services Administration and is a licensed paramedic providing oversight and direction to the County's EMS program.

EMS Medical Director
Ritu Sahni, MD, MPH
is Washington County's EMS Medical Director. He has been involved in EMS Medical Direction for over 20 years. Previously, he served as Medical Director for Life Flight Network and was the State of Oregon's first EMS/Trauma Program Medical Director. He is also currently the Medical Director for Lake Oswego Fire Department and Associate Medical Director for Clackamas County EMS. Nationally, he is a Past-President of the National Association of EMS Physicians and has served on the Board of the National Registry of EMTs and the Committee for Accreditation of EMS Programs. Dr. Sahni is board certified in Emergency Medicine and works as an Emergency Physician at Providence Portland Medical Center.

EMS Associate Medical Director
Terri Schmidt, MD, MS
is Washington County's Associate Medical Director and EMS Medical Director for Clackamas County. She is also the Physician Supervisor for the Reach and Treat Team and AMR's Water Rescue and Wildlife Fire programs. She is board certified in both Emergency Medicine and Hospice and Palliative Medicine. She has been active in EMS since 1988 having been Physician Supervisor for Oak Lodge Fire, American Medical Response, Clackamas Fire District 1, Oregon City and West Linn Fire. She was one of the founders of both the Oregon and national POLST program, is former Director of the Oregon POLST Registry, has published widely on POLST and other EMS topics and has been an invited speaker on POLST, ethics and other end of life topics around the country and nationally. She is a Professor of Medicine at OHSU where she practiced and taught emergency medicine for 25 years and is now working as part of the inpatient palliative care team.

EMS Quality Improvement & Education Coordinator
Louisa Partain is Washington County's Quality Improvement & Education Coordinator. Louisa holds an AAS in Emergency Medical Services. Louisa is a licensed paramedic who has been involved in EMS as a licensed provider and educator in Washington County for over 20 years. Her primary function is project coordination, quality improvement and education with the various agencies providing EMS within Washington County.

EMS Program Specialist
Tamara Hudson
is Washington County's EMS Program Specialist. Tamara holds an AAS in Criminal Justice. Tamara is a licensed Emergency Medical Responder and CPR Instructor. Her primary function is to provide program and administrative support for the EMS Program and the Medical Examiner's Program.

Print contact information

Washington County Emergency Medical Services Office
155 N. First Ave. MS 23
Hillsboro, OR 97124-3072
Fax: 503-693-8996