Our Team


Stephanie McGann, DMD FAGD FICD

Dentist:  Dr. Stephanie McGann has been practicing family dentistry for over 20 years. She brings experience and a love a dentistry to Rainbow Valley Dental.   She is a graduate of Temple University School of Dentistry. Her undergraduate degree was a BS in biology and computer science from Rennsselaer Polytechnic Institute. She has been awarded a Fellowship in the Academy of General Dentistry. Fellow in the International College of Dentists and A Fellow in the Pierre Fuchard Academy. She is an active member of the American Dental Association and serves on the Board of Governors for the Dental Society of Chester and Delaware Counties. As a mother of 4 she understands the needs of today’s busy families.  She still makes time to volunteer in the community.

Dr. McGann is an FAGD dentist! What does that mean for you and your family?
FAGD stands for Fellow of the Academy of General Dentistry. Earning Fellowship takes dedication to dental continuing education (CE) beyond graduation. Only about 6 percent of general dentists in the U.S. and Canada are AGD Fellows. When you see a dentist with FAGD after their name, you can rest assured that they care about knowing the latest techniques and best practices in dentistry. AGD Fellows practice these techniques in a classroom setting multiple times a year — not every dentist does this.

To become an AGD Fellow, a dentist must:
Complete over 500 credit hours of CE.
Earn 350 of those 500 credits in live courses.
Pass an exam equal in difficulty to board certification exams.


Karin Brian, DDS


Dentist: Dr. Karin Brian is nearly a lifelong member of our community. Along with more than 27 years experience in restorative dentistry, she brings to Rainbow Valley Dental a passion for helping people feel comfortable while receiving dental care. She is a graduate of the University of Maryland Dental School and holds a degree in Biology from The University Pittsburgh at Johnstown. Her honorary memberships include Fellowships in the International College of Dentists the Pierre Fauchard Academy. Dr. Brian is a member of the Academy of General Dentistry and the American Dental Association. For most of her career she has been actively involved with the Dental Society of Chester and Delaware Counties, Valley Forge Dental Association and the Pennsylvania Dental Association. Her life experience brings a unique perspective to caring for our medically complex aging population.



Cheri Aumiller, Office Manger

Kristen Gadomski, Dental Hygientist


Carol Fagnan. RDH Dental Hygientist






Courtney Clay – Expanded Function Dental Assistant

Deb Dunleavy, Dental Hygientist

Dale Coverdale, Dental Assistant and Front Desk Support

We’re a full-service, family-friendly dental practice.