Meet The Dentists

Dr. Nelle | Westminster, CO

Dr. Nelle

Nelle V. Barr, D.M.D.

Sean Whalen, D.D.S. | Westminster, CO

Dr. Sean

Sean Whalen, D.D.S.

Dr. Grace | Westminster, CO

Dr. Grace

Grace Diehl, D.D.S.

Dr. Stacy

Stacy Jackson, D.D.S.

Dr. Darby | Westminster, CO

Dr. Darby


Dr. Darby attended the University of California at Berkeley for undergrad. She went to the University of Connecticut for Dental School and finished her residency in Pediatric Dentistry at The Children’s Hospital in Denver Colorado. She has been an attending professor at the University of Colorado Dental School and the residency program at The Children’s Hospital. Dr. Darby has served as Dental Director for Dental Aid and donated time to Cavity Free at 3 and Give Kids A Smile. She has made two medical mission trips to Peru and Mexico

She enjoys the outdoors, jogging, skiing, hiking, camping and spending time with her husband and two young children.

Dr. Kyle

Kyle Diehl Ph.D., DDS

Dr. Kyle joins our practice as another proud Colorado native hailing from where many of us consider the great white north (AKA – Fort Collins). While he has fond memories of growing up a CSU Rams fan, he now bleeds the Black and Gold of CU.  While in attendance at the University of Colorado Boulder, he received his Bachelors, Masters and Ph.D. degrees in Integrative Physiology. He then transitioned to the University of Colorado Anschutz Medical Campus to obtain his Doctor of Dental Surgery and advanced education in Periodontics. While at the University of Colorado School of Dental medicine, Dr. Kyle served as both Class and Student Body President. Specific to periodontology he has been awarded both the American Academy of Periodontology (AAP) Student Award for Outstanding Achievement in Periodontology and the AAP Educator Scholars Award. The later in recognition of his continued commitment to educating future dental students, residents, and colleagues in the specialty of periodontology.


Away from teeth and gums, Dr. Kyle still appreciates his lifelong hobby of ice hockey both as a coach and player. Dr. Kyle and his wife, Children’s Dentistry’s own Pediatric Dentist Dr. Grace, can be found enjoying time with family and getting to the mountains whenever possible for various activities.

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