Meet Our Leadership Staff

Mimsy Stirn, Director of Auxiliary Programs

Mimsy has been a member of the Potomac Community for more than 25 years as both a parent and teacher. She was Potomac’s middle school music teacher for 10 years before becoming Director of Auxiliary Programs in 2010. Mimsy oversees all auxiliary programs including our ETC After School Enrichment and Extended Day programs and our Summer Programs. Prior to arriving at The Potomac School, she was Director of Operations for the National Symphony Orchestra, taught music and movement at St. Paul’s Pre-school in Alexandria and began her career with Leonard Bernstein in New York City. Mimsy enjoys being part of a wonderful team that enriches so many children’s lives each summer.

Phone: (703) 883-2252

Greg Mueller, Director of Summer Programs

Greg began his association with Potomac Summer Programs 18 years ago as the co-founder of the robotics program and then as a director-intern with our Nature Science Camp before becoming its Director. He continued in this role for 6 years before becoming Director of Summer Programs in 2011. During the school year, Greg is a science teacher in our Intermediate School and K-12 Director of Robotics. He began his teaching career in public schools in both Virginia and North Carolina and was an educator on the waterways with the Chesapeake Bay Foundation. His two children attend Summer@Potomac and his wife, Erin oversees our Day Camp Passport program. Greg is a born leader, loves to motivate children of all ages and enjoys all aspects of summer camp.

Phone (beginning June 1): 703-749-6318

Wendy Smith, Assistant Director of Summer and Auxiliary Programs

Wendy’s 20 years of experience as Assistant Director make her especially knowledgeable about Summer@Potomac! She oversees all camper enrollment and manages the camper accounts. Wendy is happy to help families through the registration process. What would my 3rd grader enjoy doing at camp? How soon do I need to register? What is the camp day like? She fields these questions and many more with expertise, and remains in contact with registered families throughout the camp season and all year. She particularly enjoys seeing campers grow up to become camp counselors and teachers!

Phone: 703-749-6317

Lisa Medici, Assistant to the Director of Summer Programs

Lisa has been a part of Potomac’s summer camp community for over 8 years, having first worked as a Head Counselor in our Paws Program. She moved into a full-time school year position as Potomac’s ETC After School Enrichment Programs Coordinator¬† and during the summer, is valuable member of our summer admin staff. Prior to coming to Potomac, Lisa was a resource coordinator for Fairfax County Schools. Lisa loves summer camp and is a camper at heart! Pirate Week is her favorite week of the summer. Ahoy!

Phone: 703-749-6307