Summit Dental Group
Dillon CO

Meet the Team at Summit Dental Group

At Summit Dental Group, our entire team is dedicated to providing our patients with superior dental care. We are highly trained professionals who are proud to be working in the dental field. Great oral health is closely tied to your overall well-being, and we strive to make every treatment comfortable and efficient so you can get the important care you need. You can be sure that we will spend all the time necessary with you to answer your questions and address your concerns.

Dr. Bryan Hilton, DDS | Summit Dental Group | Dillon, CO

Bryan Hilton, DMD

After receiving his Bachelor of Arts degree from Western State College of Colorado, Dr. Bryan Hilton obtained his Doctor of Dental Medicine degree from Temple University Kornberg School of Dentistry. Dr. Hilton then completed a year of general practice residency at Veterans Affairs Hospital in Denver, where he provided comprehensive dental care to veterans with complex medical needs. He has additional education and training in a number of specialties including periodontics, implantology, oral surgery, prosthodontics, and endodontics.

Dr. Hilton is committed to providing the highest standard of oral healthcare to his patients at Summit Dental Group, getting to know them as individuals so that he can be a compassionate partner in their dental treatment. He has received numerous awards in the field of dentistry and participates in community outreach programs like Homeless Stand Down and Give Kids a Smile. In addition, he is an active member of the American Dental Association, the Colorado Dental Association, and the Metro Denver Dental Foundation.

Dr. Corry Marcincin, DDS | Summit Dental Group | Dillon, CO

Corry Marcincin, DMD

Dr. Corry Marcincin received her Bachelor of Arts degree in biology from prestigious Lafayette College and obtained her Doctor of Dental Medicine degree with honors from Temple University School of Dentistry. She completed a year general practice residency at Denver Health Medical Center, where she continued to expand her knowledge in the specialty areas of endodontics, oral surgery, pedodontics, periodontics, and emergency dental care.

Dr. Marcincin gives back to the community through various outreach programs and brings the same compassionate approach to caring for her patients at Summit Dental Group. Her focus is on delivering excellent oral healthcare that addresses patients' concerns and dental health needs in a gentle way. Dr. Marcincin is an active member of the American Dental Association, the Colorado Dental Association, and the Metro Denver Dental Foundation. Dr. Marcincin is also an avid sportswoman who participates in running, skiing, hiking, swimming, surfing and whitewater rafting.

Amy Dethlefs

Patient Relations Coordinator

Amy graduated from the University of Northern Colorado with a Bachelors of Science in Nutrition in 2015. After not finding a passion in the nutrition field she began working in the dental field. She has worked in the dental field for over 4 years handling billing, insurance, front office duties as well as a year of assisting. Her favorite part of this profession is interacting with patients and helping them understand their treatment and insurance.

Amy grew up in Evergreen, Colorado. When not in the office she enjoys hiking, snowshoeing, cooking, spending time with her two kitties (Clark and Olive), watching football (Go Broncos!), and spending time with friends and family.

Cathy | Insurance Billing and Coding Specialist | Summit Dental Group | Dillon, CO


Insurance Billing and Coding Specialist

Cathy received her certification in insurance billing and coding from the American Academy of Professional Coders. She knows how important it is for patients to feel confident that their insurance and payment concerns are being addressed. Cathy is a born problem-solver and loves resolving issues for our patients to make the process less stressful.

Cathy was raised in Illinois and moved to Colorado in 1981. She has been with Summit Dental Group since 2012. She loves being outdoors and spends time kayaking, hiking, and skiing. Cathy also enjoys gardening, working on home improvement projects, and spending quality time with her dogs.

Janiece | Dental Hygienist | Summit Dental Group | Dillon, CO


Dental Hygienist

Janiece is a dedicated dental professional who attended Ohio State and Sinclair Community College. She loves providing her patients with compassionate care and is happy to be part of our energetic team. Janiece aspires to excellence in all aspects of her work and is a winner of the Colorado Dental Hygiene Team Spirit.

Janiece grew up in Elyria, OH and has been with Summit Dental Group for over 35 years. She enjoys taking in the Colorado scenery while skiing and kayaking and is always up for a new challenge. When her busy schedule permits, she spends time scrapbooking.

Karen | Hygienist | Summit Dental Group | Dillon, CO



Karen graduated from the Community College of Denver in 2015 with a license in dental hygiene.  She was born and raised in Thornton, Colorado and moved to Summit County in October of 2017.  She then joined our team in May of 2018.  Karen and her husband welcomed a new baby girl to the family in December 2017.  They enjoy camping, biking, cross country skiing, four wheeling, and throwing the ball for their mini Australian Shepherd.  When she can sneak away from all the new mom duties she enjoys a yoga class and a good craft beer.  

Becky Lee


Becky is originally from Sioux Falls and is a Dental Hygienist who graduated from the University of South Dakota. She loves helping people achieve optimal oral health. She loves meeting new (and established patients) as well as getting to know their families and interests. In her spare time, Becky likes to run, hike, ski, raft, paddle board and read! 

Zulma Fuller, RDH


Zulma grew up in Mexico, she has been in Summit County since 1997. Prior to becoming a dental hygienist, she was a dental assistant for 10 years. Zulma graduated with an associates degree in dental hygiene in 2017 from Colorado Northwestern Community College. She is very passionate about the dental field, she loves contributing to peoples oral and overall health. Among other skills, Zulma is fluent in Spanish and English. When not working Zulma enjoys hiking, exercise, yoga, spending time with family and friends and enjoys following her daughter around Colorado for softball tournaments.


Dental Assistant

Jess is originally from Johannesburg, South Africa. She recently graduated from the National School of Dental Assisting and joined our team in September. She is really enjoying getting to know more about the dental field and meeting all of our amazing patients. In her spare time, she enjoys cooking, baking, sewing and reading. 

A Healthy smile is just a click away.
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