Executive Leadership Team

TRA-MINW’s executive leadership team has years of experience in all aspects of practice management and medical facilities operations. The executive team believes that people are the key to continued success. To lead by example, they encourage constructive innovation from the staff and set high standards for themselves and the rest of the TRA-MINW team. Competent, supportive leadership is a leading factor to our success, and one of the reasons TRA-MINW has enjoyed a reputation of excellence for over 70 years.

If you would like to reach a member of our Executive team, please call (253) 761-4200, option 1.

Dr. Seiler v2 Dr. Choi-Chinn v2
Douglas P. Seiler, MD
President, Radiologist
Katherine A. Choi-Chinn, MD
Vice President, Radiologist


Dr. Tran Dr. Kell
Khai A. Tran, MD
Vice President, Radiologist
Jonathan M. Kell, MD
Secretary, Radiologist


Dr. Zima Dr. Bjarke
Aaron Zima, MD
Secretary, Radiologist
Erik N. Bjarke, MD
Treasurer, Radiologist


Dr. Park
Lawrence S. Park, MD
Treasurer, Radiologist



Dennis Carter v2

Chris Coates v1
Dennis Carter
Chief Executive Officer
Chris Coates
Chief Financial Officer