2500 Wallington Way Suite 204, Marriottsville, MD 21104

Dr. Roschella
Karen Roschella, DDS
Dr. Roschella is a founder and CEO of RZ Dental Group which celebrated its 25th anniversary in 2018. Dr. Roschella has a patient-centric philosophy which focuses on providing excellent dental care as well as outstanding customer service. Dr. Roschella enjoys getting to know all of her patients and treats everyone like family. She loves creating beautiful smiles.

Dr. Karen Roschella grew up in Greensburg, Pennsylvania, graduating from Greater Latrobe High School. She graduated with high honors from West Liberty State College with a B.S. in dental hygiene and practiced for several years. Dr. Roschella received her D.D.S. degree from the University of Maryland Dental School where she was a member of the Gorgas Odontological Honor Society and the Prosthodontic Honor Society. She then completed an advanced general dentistry residency at the University of Maryland.

Dr. Roschella lives in Howard County with her husband and two sons. She enjoys yoga, quigong, skiing, traveling and her new sport is pickleball. Her family cheers for the WHC Renegades, Glenelg Gladiators, UMD Terps, Baltimore Orioles and the Pittsburgh Steelers.


Dr. Zinger
Ann Zinger, DDS
Dr. Zinger is a founder and CEO of RZ Dental Group which opened its doors in 1993. Dr. Zinger is very proud that RZ Dental is known for its high level of customer service and community involvement. Dr. Zinger is committed to providing high-quality, patient-focused care with the latest technology in a relaxed environment. Dr. Zinger will meet you with a genuine smile and give you her full attention. Dr Zinger enjoys the constantly improving technology and will provide a wide range of treatment options.

Dr. Ann Zinger is a longtime Columbia resident, graduating from Oakland Mills High School. She received her B.S. degree in biology from Towson State University, and then attended the University of Maryland Dental School where she received her D.D.S. degree. Dr. Zinger was Vice President of her graduating class as well as a member of the Prosthodontic Honor Society. She completed a post graduate residency program in advanced general dentistry at the University of Maryland. Dr. Zinger was Chief Resident of this program.

Dr. Zinger lives in Western Howard County with her two beautiful daughters; Haylee and Riley, her husband, Billy, and their Weimeraners, Nixsea, and Jack. She enjoys the beach, being outside, watching her identical twins grow up, and spending time with all of her family.


Dr. Brown
Ashley Brown, DDS
Dr. Brown graduated with a degree in Biology from McDaniel College (Formerly known as Western Maryland College) in Westminster, MD. She then obtained her Doctor of Dental Surgery degree from Meharry Medical College in Nashville, TN. While at Meharry, Dr. Brown excelled receiving many awards and honors. She graduated in the top 5% of her class and was inducted into Omicron Kappa Upsilon Dental Honor Society.

Dr. Ashley Brown’s focus is on patient comfort and staying current with the latest technology and advances in dentistry. She places an emphasis on quality and comprehensive care with a warm chairside manner. Dr. Brown is also an Invisalign® provider. Dr. Brown continues to broaden her scope of practice in dentistry. She is very excited to be starting her implant training at the University of Maryland School of Dentistry. Dr. Brown is an active member of the American Dental Association, Maryland State Dental Association, and Howard County Dental Association.


Meet Our Team

The Team


Linda – Team Leader
Linda is our team leader. Linda started with RZ Dental Group in 2006 as a part-time hygienist. After moving to the new office in 2007 she became the full-time hygienist. In 2014, she became the team leader. She supervises the day to day operations of the office. Linda lives in Woodbine with her husband and enjoys spending time with her three adult children, their spouses and her two grandchildren, Luke and Juliana.


Melissa – Front Desk Coordinator
Melissa has been in the dental field since 2006. She joined RZ Dental Group in 2015. She enjoys spending time with her beautiful children, Kyleigh and Tristan.


Monica – Front Desk Coordinator
Monica spent the last 15 years in the title and mortgage industry before making the switch to RZ Dental Group. She lives in Woodbine with her family of six and her labradoodle, Charlie. She enjoys traveling with her family and friends and is always planning her next adventure. When she is not traveling, she enjoys hosting parties and get-togethers for all of her local friends and neighbors.


Rachael – Front Desk Coordinator/Marketing
Rachael has been in the dental field since 2011. She moved to Maryland in the beginning of 2018 from upstate New York. Rachael lives in the Inner Harbor with her husband. She enjoys spending time with her family and friends, traveling, and trying new things.


Diane – Registered Dental Hygienist
Diane has been a hygienist at RZ Dental since 2001. She enjoys meeting new people and she especially values the relationships she has built with her patients over the years. Diane graduated from the University of Maryland Dental School with a B.S. in dental hygiene. She is a Maryland native and currently resides in Laurel with her husband Terry and their daughters, Pamela and Amy. When she has free time she likes to relax with a book or a puzzle.


Laura – Registered Dental Hygienist
Laura has been a part of the RZ Family since 2007! She has been a team member in the roles of sterilization assistant, dental assistant, receptionist and currently dental hygienist. Laura is also an instructor at the Howard Community College Dental Hygiene Program. Laura earned a B.A. in psychology from Elon University and B.S. in dental hygiene from the University of Maryland School of Dentistry. She is an active member of her professional association and served as president of Maryland Dental Hygienists’ Association in 2015. She was the recipient of the Esther Wilkins Future Leader Award in 2016. Laura resides in Sykesville with her husband Brandon, daughter Kate, and poodle Guinness.


Stephanie – Registered Dental Hygienist
Stephanie is our full-time dental hygienist and has been with RZ Dental Group since 2014. She grew up in Baltimore County and currently lives in Ellicott City. When Stephanie isn’t spending time with family, you can find her hiking, camping, or enjoying the beach. She also loves traveling the world and looks forward to trying new authentic cuisines.


Fonda – Registered Dental Hygienist
Fonda has enjoyed being a dental hygienist for 29 years and is excited to have accepted a position as a hygienist with RZ Dental Group in the Spring of 2018. Fonda grew up in Carroll County and loves spending time with family. She and her husband, Dan, also enjoy golf, weekends at the beach, bicycling and kayaking.


Rachelle – Registered Dental Hygienist
Rachelle has worked at RZ Dental in the past and is so excited to be back as part of the hygiene team. She has been working in dental offices for eight years and recently went back to school to become a hygienist. She is truly passionate about helping people keep their smiles healthy. She has a B.S. in exercise science from Shippensburg University and an A.A. in dental hygiene from Howard Community College. She lives in Bowie with her wife Joey and their two dogs. She plays softball and baseball but she really loves to watch and play all sports.


Tammy – Dental Assistant
Tammy has been working with RZ Dental Group since 1999. She is a certified dental assistant and dental radiation technician. Tammy is in charge of the hygiene department as well as all the lab cases. She is the smallest one in the office, so she is easy to pick out! Tammy currently lives in New Market, MD, with her husband and son. She also has three wonderful stepchildren. Tammy has a rescue dog named Kacey. Her hobbies include watching the Steelers play, spending time with her family and going hiking with Kacey.


Krissy – Dental Assistant
Krissy has been in the dental field since 2000. She is also orthodontic expanded functions certified. Krissy is living her best life with her husband and kids. She loves working out, boxing, traveling and most important spending time with her family.