Your Dental Team

Meet the Dental Pros!

All our professionals at Gassen Dentistry maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

  • Matthew A. Gassen, D.D.S.

    Dr. Matthew Gassen completed his DDS at the University of Missouri-Kansas City School of Dentistry in 2002.  He was born in Louisiana, but his family moved to Missouri as a young child.  Dr. Gassen was raised in Taos (just outside Jefferson City).  He attended Blair Oaks elementary and then Helias High School.  Dr. Gassen has always loved this community and planned to practice here.  His practice philosophy is to treat everyone as you would want to be treated.  He is a member of the American Dental Association, Missouri Dental Association, and Past President of the Jefferson City Dental Society.  He is truly passionate about providing honest dental care in a fun environment with state-of-the-art equipment.  Dr. Gassen is married and has three daughters, which are his pride and joy.

  • Jennifer
    Office Manager

    Jennifer is a native of Jefferson City and a 2001 graduate of William Woods University where she obtained a Bachelor of Science Degree in Equestrian Science.  She trained horses professionally for 7 years in Atlanta, Georgia before moving back to Missouri.   She became Dr. Gassen’s office manager in 2008.  Jennifer enjoys spending time with her husband and 2 children and meeting new people.  She still actively competes in horse shows across the country as  an amateur and in 2011 was crowned the US Arabian Country English Pleasure 18-35 National Champion.  

  • Vicky
    Registered Dental Hygienist

    My name is Vicky Jaegers, I’m a dental hygienist and I live in Linn with my husband Corey and 4 sons. I graduated from State Fair in 2009 and have been with Dr Gassen for 12 years. My favorite part of being a hygienist is helping people reach their dental and healthcare goals.

  • Melissa
    Registered Dental Hygienist

    Melissa is a 2011 graduate of Carl Sandburg College of Dental Hygiene. She joined Dr. Gassen in 2012 as a Registered Dental Hygienist. Melissa loves being able to create a bond with her patients. She loves spending time with them while assisting to achieve and maintain optimal oral health.Originally from Illinois, Melissa now lives at the Lake of the Ozarks with her husband and two daughters. She enjoys hiking, traveling, relaxing by the water and spending time with her family and two Cavalier King Charles puppies.

  • Megan
    Registered Dental Hygienist

    Megan is also a Registered Dental Hygienist and works part-time for Dr. Gassen as needed.  She is from Topeka, Kansas and received her BS in Dental Hygiene from the University of Missouri-Kansas City in 2002.  Megan and Dr. Gassen met in school and were married in 2002.  They have 3 busy daughters.  Being a hygienist has given her the opportunity to meet so many wonderful people of Jefferson City.  She enjoys those relationships she’s made with many patients over the years.  Megan likes to travel, golf, cook, and watch her daughters grow!

  • Kelly
    Dental Assistant

    Kelly graduated from Nichols Career Center in 2009 for Dental Assisting. She has been a part of the Gassen Dentistry family as a dental assistant since 2017. Kelly currently resides in Osage County with her husband, Mark. She enjoys spending time with their 2 young daughters, traveling with her family, relaxing by the water, and spending time with friends. She likes to give Dr Gassen a hard time- all the time:) 

  • Sue
    Dental Assistant

    I'm from Des Moines Iowa. Married with 2 daughters and 2 grandchildren. Retired but never left, because I love what I have been doing for 53 years. Love spending time with my grandchildren traveling when life permits and reading. Went to Des Moines Area Community College (DMACC).

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Matthew A. Gassen, DDS


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-12:00 pm