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Meet the Staff

Our team has trained and is dedicated to offering our patients the best service possible. Through continuing education, training in the latest treatments and overall understanding and compassion for our patients, we've created a dental experience that is sure to bring a smile to your face.


Dr. Dan Hayden
Dr. Dan Hayden is a fifth generation Oregonian, born in Willamete Valley. Dr. Hayden grew up in Fall Cree, Oregon on a homestead within the Willamette National Forest and spent his childhood in the woods and rivers giving him a lifelong love of the outdoors.

Dr. Hayden attended Walla Walla College and earned his degree in Health Science followed by Loma Linda School of Dentistry where he graduated in 2006. After graduation Dr. Hayden worked in his brother's dental clinics in Eugene and Hermiston and in 2008 moved to Baker City.

Dr. Hayden married his wife Kami in 2000 and has two children, Kaylee and Charlie. He enjoys many hobbies including hunting, fishing, archery, beekeeping, gardening, reading, cooking and woodworking.


Allison Clarke
Allison was born in California. She moved to Baker City in the 7th grade and graduated from BHS in 2006. After getting her EFDA she moved back to Baker City in 2009 and has been here since. She enjoys art, softball, her dog, gardening, baking pies, snowboarding and camping.

Corey Jon Jonas
Corey was born near Portland Oregon. Corey moved to Baker City when he was 7 years old and currently resides here and loves snowboarding, four wheeling, camping and mountain biking. Corey married his long time friend Kimberly Louise Wirth. Together they have a son Logan Oliver Jonas. Corey enjoys managing the Mountain Valley Dental Group and looks forward to meeting with you.

Sherri Kay Linnemeyer
Sherri grew up in the Black Hills of South Dakota. She has been a registered dental hygienist since 1999. She graduated at the top of her class from Oregon Institute of Technology with a Bachelor of Science Degree in Dental Hygiene and Education. She is very passionate about her role in helping her patients have healthy smiles. She is also passionate about her many hobbies such as hiking, alpine and backcountry skiing and snowshoeing, whitewater kayaking, land sailing, photography, making movies, watercolor painting, gardening, hula and belly dancing. She is happily married to her husband Steven and lives with their two big dogs in Baker City, Oregon.
Brieanne Tiffany Bain
Brieanne has been a dental assistant since 2007. She studied at Central Oregon Community College in Bend, Oregon. She enjoys helping patients and making them feel comfortable.

She was born in Washington and grew up in Redmond Oregon. She is happily married to her husband Justin. Brie has a daughter named Brylee Sue Bain and a baby boy on the way.

Her hobbies include camping, gardening, snowboarding, sewing, baking and movies.

Mountain Valley Dental Group PC  |  3980 Midway Drive  |  Baker City, OR 97814  |  (541) 523-6311  |  Site Map  |  Created by Dental Branding