Meet Our Team

Danielle Lowe, Assistant

HereDent-1390_ppa1Danielle grew up in Baltimore County. After graduating from Hereford High in 2005, she went on to York College where she earned her BS in Criminal Justice in 2009. Since starting at Hereford Dental Health in January 2013, Danielle has loved training under Dr. Longenecker. Her friendly smile and warm nature, help to make you feel at ease in the Dentist’s chair.
When she is not busy with work or school, Danielle enjoys working out, spending time with friends and family, and cheering on The Baltimore Ravens and Miami Heat.

Monica Ritter-Nelson, RDH

HereDent-1390_ppzMonica grew up in Maryland, and moved to Monkton in 2000. Shortly after that she began working for Dr. Longenecker in 2001. Monica graduated with an Associates of Science Degree in Dental Hygiene, from Baltimore City Community College in 2000. She frequently attends continuing education courses to further her career. She is an active member of the American Dental Hygienists Association, and has a passion for helping her patients obtain optimal dental health.

Monica lives with her husband, 2 little boys, and family dog in Monkton. Aside from being a Dental Hygienist, she also assists her husband as a licensed real estate agent in Maryland and Pennsylvania. In her spare time, Monica likes to read, garden, and teaches 3rd grade religious education.

Donna Lambert, RDH


Donna is a native of Baltimore. She received her Bachelor of Science Degree in Dental Hygiene with honors in 1978. As an active member of the American Dental Hygienist Association, Donna is a highly skilled clinician with a warm personality and a kind heart. She loves dentistry and it shows! She has embraced all the changes and improvements that have occurred since she graduated, and spends countless hours in continuing education. Donna is passionate about helping her patients obtain optimal health.

She has been working with Dr Longenecker since 2007 and truly enjoys spending time with her patients.

She has one daughter, Megan, who is a professor of writing at University of Central Florida and works at Disney World running space mountain!

Donna currently lives in Freeland with her husband Gary. They enjoy spending many weekends at their home near the beach in Delaware. In her spare time she likes to garden, cook, travel and spend lots of time with family and friends.