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Take a moment and get to know your new dental family.

Dr. Gregory Martin


Dr. Gregory Martin grew up in Fairfax County, Virginia and has spent his entire life in the Washington DC metropolitan region. He completed his undergraduate studies in Mathematics earning both a Bachelor of Science in mathematics and a Masters of Science in mathematics and statistics from Georgetown University. During this time he volunteered as a dental assistant at a community health clinic in Washington DC. He is a graduate of the University of Maryland School of Dentistry where he earned his Doctor of Dental Surgery and completed their oral surgery clerkship program. Dr. Martin is an active participant in both local and national continued education courses and local study groups. He places high importance on the use and implementation of cutting edge technology in the dental field and the benefits of practicing digital dentistry. Formerly a high school mathematics teacher, Dr. Martin loves teaching and spends time with every patient explaining their treatment in clear and concise ways that empower them to better understand dentistry and take control of their oral health. In his spare time Dr. Martin enjoys fitness and has been a group fitness instructor in Washington, DC for the past twelve years. He plays the trumpet, piano and is fluent in German.

Tania Del Valle

Office Manager

Tania plays a critical role at Dr. Gregory Martin DDS not only as the office manager but the lead assistant and insurance specialist. She introduces every patient to the office and walks them through every step of the treatment process, including answering any and all questions about the patient's dental insurance plan and coverage. She has worked in the dental field for over eight years in a variety of capacities and has a vibrant passion for dentistry and caring for the patient's needs. The comfort of the patient is a top priority to Tania and she loves seeing patients thrive with the exceptional dental care patients receive in the office. When she is not in the office she enjoys her time with her husband and her 4-year-old daughter. She is a bilingual English-Spanish speaker.

Judy Martin

Front Desk Coordinator

Judy is honored to be a member of Dr. Martin's team! Little did she realize when she retired from a fulfilling and rewarding career as a high school Spanish and French teacher that Dr. Martin would invite her to join his practice. Her goal is to ensure that all patients feel welcome. When Judy is not greeting patients, answering the phone, or scheduling appointments, she enjoys spending time with her family, traveling, reading, studying languages, and playing her cello. She is extremely proud to be a part of Gregory Martin DDS.

Chris Fagan

Registered Dental Hygienist

Chris has been a dental hygienist for over 22 years and holds a Bachelor of Science degree from the University of Maryland School of Dentistry. He takes pride in offering the utmost professional care and providing guidance to patients seeking to improve their oral health. Whether he’s helping them address minor or major dental health issues, Chris is dedicated to his craft. In addition to offering comprehensive care as a dental hygienist, Chris also has advanced training in local anesthesia. When away from the office, Chris enjoys camping and attending Penn State football games with his wife Valerie and two children, who are both students at Penn State.