Milestones in PNWU's History
| Summer, 2004 | Multiple meetings are held by founders to formulate a plan to develop a health sciences university. |
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| February 16, 2005 | PNWU is founded as a 501(c)(3) corporation. |
| June 30, 2005 | $7.2 million of land is donated to the University. |
| March 6, 2007 | The Washington Higher Education Coordinating Board authorizes PNWU to offer the DO degree (doctor of osteopathic medicine). |
| May 16, 2007 | Ground-breaking ceremonies are held for the construction of the first academic building on the PNWU campus, later to be named Butler-Haney Hall. |
| August 26, 2007 | American Osteopathic Association, Commission on Osteopathic College Accreditation (AOA COCA) awards PNWU provisional accreditation. The recruitment of students begins. |
| March 22, 2008 | Seventy-fifth student for inaugural class is confirmed. |
| July 23, 2008 | Dedication of the first college, College of Osteopathic Medicine. |
| June 23, 2010 | Groundbreaking ceremony for the Cadwell Student Center. |
| December 1, 2011 | Osteopathic Foundation of Central Washington donates $1m for the BHH Phase II expansion project. |
| April 22, 2012 | Accreditation of the COM awarded by the AOA COCA. |
| May 11, 2012 | First alumni meeting held. |
| May 12, 2012 | Inaugural class of COM students graduates. |
| December 1, 2012 | AOA COCA grants request for COM class size increase (from 70 to 135 students). |
| May, 2013 | Phase II of Butler-Haney Hall is completed. |
| August 6, 2013 | Increased COM class size matriculates (135 students). |
| March 2015 | Additional acreage purchased bringing the campus to 66 acres. |
| May 2015 | The University Conference Center opens as PNWU's third building. |
| June 8, 2016 | PNWU purchases Iron Horse Lodge. |
| January 2018 | University receives NWCCU accreditation two years ahead of schedule, opening the door for additional PNWU Health Sciences programs. |
| April 3, 2018 | PNWU celebrates its newest building - a 35k sq. ft. space fit for innovative growth - with the Project NEXT Community Campfire. |
| October 8, 2018 | Michael J. Lawler takes over as President of PNWU. |
| September 27, 2019 | Watson Hall dedication |
| December 16, 2020 | Master of Arts in Medical Sciences (MAMS) program is authorized and approved as the second degree program offered by PNWU. |