Front Desk Receptionist

Lindsay was born in New York but raised since she was two weeks old in the Conch Republic. She has a sweet little boy who, at two years old, is keeping her very active. She is new to dentistry and is learning a great deal. Her energy and enthusiasm have made her a valuable addition to the team and we look forward to watching her grow.


Registered Dental Hygienist

Lindsey Graduated from Coral Shores High School and went onto earned her Associate of Science degree in dental hygiene from Hillsborough Community College, graduating with honors in 2014. She enjoys the fun environment of the office and loves working with her fellow team members. Lindsey takes pride in helping patients maintain their oral health and enjoys providing preventive, therapeutic and educational services to our wonderful patients. She and her husband enjoy spending time with their daughter.


Dental Assistant

Yeilys Matos was born in Cuba and has been living here for the last 15 years. She enjoys “beaching” anything and everything to do with the beach, jet skiing, swimming, snorkeling, etc. She loves her baby, a Pomski named Luna, who is in her not-so-terrible twos. She is looking forward to helping keep people healthy and being the best assistant ever! She loves seeing you smile!


Dental Assistant

Fe is Dr. Kiefer’s wife. She is originally from the Philippines and moved to Marathon in 2014. She graduated 2009 with her associate degree of Medical-Dental-Nursing assisting from the Negros Oriental State University in Dumaguete City, Philippines. Fe is a great cook and loves gardening and travel. Fe and Dr. Kiefer brought a beautiful girl to this world on January 31, 2019 and are expecting their second child in 2023.


Lauren was born and raised in New Jersey, then she took off to Colorado College for undergrad. After that she went to Pratt Institute for her master’s degree for her arts Degree. Lauren moved to the Keys 6 years ago. She is outgoing and loves being outside with her baby and loves her new career as a dental assistant.


Grace moved from her hometown in Pennsylvania and now resides in the Florida Keys. She is proud to call Marathon and Dr. Kiefer’s dental practice her new home. Grace has been working in the dental field since 2010. Her current role is that of front office manager. She loves interacting with patients and making the dental experience at our office as great as possible. Our patients and staff enjoy her positive personality and radiant smile. Grace enjoys spending time with family and friends fishing, scuba diving and everything boating has to offer.


Lisa is originally from the United Kingdom. She relocated to Marathon in 2022. She graduated in 2016 with her bachelor’s degree in dental assisting with High Honors in Jacksonville. For the past six years Lisa had been an integral part of a dental team in Ormond Beach before joining the team in Marathon. She is certified in General Chair side Assisting, Radiation Health and Safety, and Infection Control. Lisa loves to make her patients feel comfortable and confident in the care she is providing during dental treatment. She resides in Marathon with her husband, Steve, their three dogs. Lisa loves spending time with her family and friends, paddle boarding, dining out, and traveling.


Brook Patterson was born and raised in Winter Haven, Fl and has recently moved to the Florida Keys and joined our practice. While attending the University of Central Florida, Dr. Patterson sparked an interest in dentistry and began the pursuit of his career. After receiving a Bachelor of Science degree, he moved to Louisville, KY to fulfill his dental training at the University of Louisville School of Dentistry. Graduating amongst the top of his class, Dr. Patterson strives to provide the best quality of care to his patients that they can obtain. In his free time, he can be found somewhere on the water hanging out with his fiancée and listening to some good reggae music.