John Keller, DDS

Dr. Keller was born and raised in Dickinson, North Dakota. He did his undergraduate work at the University of St. Thomas, St. Paul, and earned his D.D.S. at the University of Minnesota in 1986. He continues his dental education through coursework and study clubs, with an intensive concentration on Adult Restorative and Implant dentistry.

Dr. Keller and his wife, Laurie, are involved with their family of five children: Megan & family, Ben, Brian, Prentice & Orion, David and Jenny. Dr. Keller’s hobbies include fitness, biking, and sailing.

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Megan Vasko, DDS

Dr. Vasko returned to the community she grew up in to join her father’s practice. She attended the University of St. Thomas and received her Bachelor’s degree in biology. Dr. Vasko attained her dental degree at the University of Minnesota School of Dentistry. She is passionate about dentistry and loves helping her patients improve their oral health and gain confidence in their smiles while creating lasting relationships. Dr. Vasko volunteers monthly at the Hope Dental Clinic.

Outside of the office, Dr. Vasko enjoys spending time with her husband and their growing family. Her hobbies include cooking, reading, enjoying the outdoors.

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Dental Assistant

Emily has been a dental assistant for the past 20 years. She enjoys working with Dr. Vasko helping patients feel at ease about their dental treatment and helping them achieve their best smile. When not in the office, Emily enjoys family time with her husband, 4 kids and dog in Ham Lake.


Business Assistant

Callie has been both a Licensed Dental Assistant and Business Office Manager with Dr. Keller for 34 years. One of her favorite things about working at this office is the great staff and patients that we have. She graduated from North Hennepin Technical College in Dental Assisting, and her experience in both these areas have been a valuable asset to our practice in helping our clients with insurance billing, scheduling and general office inquiries.


Dental Hygienist

Deana graduated from Normandale with a degree in Dental Hygiene is 2015, and loves creating relationships with her patients and providing them with the highest standard of care. She speaks Russian and is actively involved in Bethany Russian Baptist Church. In 2013 she married her high school sweetheart Dennis, and they were blessed with their son in 2018 and daughter in 2020. She loves being a mother and enjoys spending her days outdoors with her kids. Deana also loves to travel as a family.



Lisa has been a Registered Dental Assistant for 38 years, and has been working with Dr. Keller for 5+ years. She loves that she’s been able to get to know each patient, and treats them with respect and quality care.

Lisa is married, and has three sons, 3 grandchildren, and dogs. She also has three siblings and am a twin. Lisa enjoy the outdoors, fishing, flower gardening, walks and lots of family time!


Dental Hygienist

Kris began her 28-year dental career as a dental assistant in 1994. She became a Dental Hygienist in 1999, graduating from Century College and then pursued her Bachelor’s degree in Dental Hygiene from Minnesota State University Mankato. She worked in a large group practice in St. Paul with a Periodontist for 18 years, and at a Holistic General Practice in Hopkins for 3 years before moving closer to home to join Keller Vasko Dental. Kris has substantial experience helping patients with gum disease achieve a healthy smile. She is dedicated to providing comprehensive, gentle and non-judgemental care to patients. It is her passion to make every appointment a positive experience; even to those that have dental fear, anxiety, or may not have been to a dentist in years. Kris is committed to making you feel at home and well cared for regardless of your dental history. She has 2 teenagers and enjoys studying nutrition and holistic health, cooking, and hiking with her family.


Dental Assistant

Judy is a certified licensed dental assistant who chose to pursue her career in dentistry after raising her two sons with her husband of 36 years. Judy graduated from Hennepin Technical College in 2010 and joined Drs. Keller and Vasko in 2020. Becoming a dental assistant has been very rewarding for Judy and she looks forward to continued growth and learning as Dr. Keller's assistant and team member at the office. When not in the office, Judy enjoys spending time Up North at their cabin in the warmer months and boating, fishing, foraging for wild edibles and relaxing with friends and family. At home she enjoys all things cooking, hanging out with friends and walks in the woods.