Meet our Providers
Jim Siddall, PA-C

Clinic co-owner, Jim, was raised in Wisconsin.  He served in the US Marines and graduated from University of Wisconsin/Marshfield Clinic Physician Assistant program.  His medical interests include emergency medicine, family practice and nutrition.  His hobbies include skiing, snowshoeing, scuba diving, camping, hunting, fishing, and carpentry.  He also enjoys volunteering his talents with various organizations and has volunteered in Haiti and India.

Keith Kehoe, PA-C

Military veteran of the US Army. Came to Alaska as a seasonal Denali National Park Ranger. Graduated from the University of Washington Medex Physician Assistant program in Sitka in 1996. Settled in Talkeetna for the last twenty years with his family. Served in bush communities around Alaska and was a PA in Scotland and England. Hobbies include woodworking and beekeeping. 

Seamus Siddall, PA-C

Clinic co-owner, Seamus, was born and raised in Alaska.  He has been associated with the medical services at Clear AFS since 1998 as an EMT and eventually as a Physician Assistant beginning in 2008.  He graduated from the University of Washington MEDEX Physician Assistant program and is certified by the NCCPA.  He maintains memberships in the AAPA, AKAPA, and SEMPA.  When he is away from work , he most enjoys spending time with his family and being involved in anything outdoors.

Thom DeBlauw, PA-C

Thom was raised in Alaska. Following high school he later graduated from the MEDEX Physician Assistant program through the Army. Tom served in the Army Special Forces. His medical interests include cardiology, emergency, and military medicine.  Outside of work he enjoys the outdoors, travel, spending time with his family, and building his home with his wife.

Ashley Marquardt, PA-C

Ash arrived in Alaska in 1983 on active duty with the Air Force.  After retiring in 1994, he worked as a paramedic on the North Slope and in Healy, AK.  He attended PA school in 1999 and returned to Alaska where he continued working in Healy and at Clear.  He moved to Anchorage where he spent the next fifteen years in Internal Medicine and as faculty at the MEDEX PA school at UAA.  He was recognized as Alaska’s PA of the Year in 2013.  Ash has been flying since he was a teenager and has several aircraft here in Alaska.  He is also a USA Hockey referee and spends much of his free time “on the ice.” 

Marc Dumas, MD, FACEP, FAAEM

Marc has been involved with EMS for over 35 years. He is a residency trained and board certified emergency medicine physician. He currently functions as a tactical physician for the Fairbanks Police Department’s Tactical Police Team, a position he’s held for over 19 years, and has worked with the Alaska State Troopers, FBI, ATF, DEA, and others. He also serves as medical director for the Fairbanks Fire Department, the Ketchikan Fire Department, the Alaska Marine Highway System, and numerous other EMS agencies around the state. Marc has extensive experience as a flight physician, ER physician, and pre-hospital provider.

Meet our Staff
Brandi McKenzie, EMT II
Brandi was born and raised in Nevada, but spent every summer growing up in Interior Alaska. She is a certified EMT II and our clinic manager. During her off time she enjoys camping and kayaking with her husband and two sons.
Emily Myhre, EMT II

Emily moved to Alaska in 2013 to follow her love of mountains. An EMT II, Emily runs as a volunteer with McKinley Volunteer Fire Department in addition to working at the clinic.  Emily spends most of her free time hiking, climbing, skiing, paddling and camping. She spent 7 years guiding wilderness expeditions, and now she enjoys personal trips in the wilderness.

Chad moved to Alaska with the military and loved it so much he elected to stay.  In addition to working at the clinic, Chad is active with the Anderson Volunteer Fire Department and the Nenana Volunteer Fire Department.  He enjoys spending time with his family hiking, fishing, hunting, and doing all things outdoors.