About Us

Sullivan Family Dentistry's vision is to always create a dental practice environment that treats every patient with dignity and first-rate care. The hygienists, dental assistants and office staff at Sullivan Family Dentistry are highly-trained and exceptionally friendly.  We understand that for many, visiting a doctor can be a stressful experience.  Our comfortable surroundings and compassionate dental professionals will ease your fears.

Michael P. Sullivan, DDS

Dr. Sullivan grew up in Laramie, WY and earned a Bachelor of Science degree in Health Sciences and Pre-Medicine with Honors from The University of Wyoming in 2000.  He was simultaneously commissioned as a 2nd Lieutenant in the United States Army.

Dr. Sullivan then spent seven years on active duty as an Army Intelligence officer and paratrooper with the 82nd Airborne Division and 4th Infantry Division.  During that time he deployed for four separate tours of duty in support of Operation Iraqi Freedom.  Amongst other military honors, Dr. Sullivan is the recipient of The Bronze Star Medal, The Meritorious Service Medal and The Presidential Unit Citation.  He now serves as a Major in the Nebraska Army National Guard, and provides dental services for Nebraska Guard Soldiers every month in Lincoln.

Upon leaving active duty in 2007, Dr. Sullivan attended The University of Nebraska Medical Center College of Dentistry in Lincoln, NE to attain his DDS degree.  He graduated from dental school with Academic Distinction, while also being awarded top honors for his research work and patient care skills.

Dr. Sullivan enjoys staying fit and spending time out in nature with his wife and two children.  He is an avid bicycle rider, and he is a classically trained tenor who always likes singing in music groups or at church.  Dr. Sullivan loves the York and Geneva communities, and is ecstatic to be practicing dentistry here.

        James R. Trexel, DDS

Dr. Trexel grew up in a military family, and by age 15 had lived in 6 different states, as well as Sweden.  Since then he has lived in Lincoln and spent two years each at Southeast Community College and the University of Nebraska Lincoln, earning a BS in biology.  Upon completion of his undergraduate degree, he was accepted into the UNMC College of Dentistry in Lincoln, NE.  He received his dental degree in May of 2014.

Dr. Trexel loves to spend time with his wife and daughter, and enjoys hunting, fishing and playing basketball.  He is also very active in church activities.  He is excited to be serving the Geneva community full time as an associate of Sullivan Family Dentistry.




Sheldon L. Carlow, DDS

Dr. Carlow was raised on a farm near Bloomfield, NE.  He graduated valedictorian of his class at Bloomfield High School in 2002.  He was awarded the RHOP (Rural Health Opportunities Program) scholarship and attended Wayne State College from 2002-2005.  He received his Bachoelor of Science degree in biology in 2006.  He attended the University of Nebraska Medical Center College of Dentistry from 2005-2009 and earned his Doctor of Dental Surgery degree in 2009.

Dr. Carlow enjoys spending time with family and friends.  His hobbies include lawn care and landscaping.  He is happy to have had the opportunity to practice dentistry in the strong rural community of York since 2009.


  Sullivan Family Dentistry accepts all major insurance plans.
No need to worry.  Sullivan Family Dentistry is here to help!

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