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Our Dental Team

Our Doctors and Team

Jonathan Mandras, DDS

Dr. Jon Mandras

Dr. Mandras grew up in Owings Mills and completed his pre-dental requirements in the College of Life Sciences at the University of Maryland, College Park and continued right into dental school at the Baltimore College of Dental Surgery where he earned his D.D.S degree. Dr. Mandras was accepted into a prestigious general dentistry residency at the Bay Pines VA Hospital in St. Petersburg, Florida where he focused his time on advanced prosthetic and restorative procedures. Dr. Mandras is currently taking advanced dental courses at the Pankey Institute.

Over the past few years, Dr. Mandras has practiced comprehensive care dentistry in Baltimore, Prince Georges and Howard counties. He is a kind and caring practitioner who considers his patients well-being as his top priority. Dr. Mandras strives for perfection and he ensures that his patients are satisfied and comfortable with his treatment. Dr. Mandras has a great disposition for a dentist, he is gentle and compassionate and makes all attempts to accommodate on and off hour emergencies and stay on schedule as he values his patients time. He enjoys all facets of dentistry. His training encompasses patients of all ages including children and he is particularly efficient and successful with the most challenging of procedures including root canals, extractions, crown and bridge, whitening, Invisalign, implants, veneers, fillings, onlays/inlays, and periodontal treatment.

Understanding that most dental patients like to be treated under one roof, Dr. Mandras’s practice will be broad spectrum and cater to his patient’s needs. His philosophy is to treat others the way you would want to be treated. That directly translates to the high quality of his dentistry. Every patient in the office is treated equally, as if they were his family members. After meeting Dr. Mandras for the first time you will realize he is very honest and you will be able to trust he is looking out for your best interest. The doctor brings a light-hearted humor to the office that could make any patient comfortable while in the chair. His main goals for his patients are complete oral health, beautiful cosmetic smiles, and prevention of dental emergencies.

James Taneyhill, DDS, FAGD
Retired, March 2013

Dr. James Taneyhill

For more than 20 years, Dr. James Taneyhill has offered superior quality dentistry to the community of Bel Air, Maryland. Dr. Taneyhill is a Fellow of the Academy of General Dentistry, a rare distinction achieved by less than three percent of dentists nationwide, and has been inducted as a Fellow of the International College of Dentists. Dr. Taneyhill is also an instructor at the VA Medical Center in Baltimore, where he teaches restorative dentistry and esthetics to dental residents.

Dr. Taneyhill was raised in the Rodger’s Forge section of Baltimore County. He attended Loyola High School (Class of 1965) and Loyola College (Class of 1969). He then served in the army as a helicopter pilot for four years, including one year in Vietnam.

After leaving active duty in 1973, Dr. Taneyhill continued to serve in the Maryland Army National Guard. In 1999, he retired at the rank of Colonel after 30 years of service in the guard. He was a Master Army Aviator and has been awarded the Legions of Merit and the Bronze Star, among many other commendations.

Dr. Taneyhill graduated from the University of Maryland Dental School in 1980 as one of only 10 students selected to participate in an accelerated program. The program resulted in the awarding of a Doctor of Dental Surgery Degree in three years rather than four. He then served a one-year Dental General Practice residency at the Veterans’ Administration Medical Center in Baltimore before entering full-time private practice in Bel Air in 1981.

As part of his commitment to continuing education and excellence, Dr. Taneyhill maintains active involvement in the dental community through professional memberships and post-graduate studies. His professional affiliations include membership in the:

  • American Dental Association
  • Maryland State Dental Association
  • Harford/Cecil County Dental Association (Past President)
  • Academy of General Dentistry (Fellow)
  • American Equilibration Society
  • International College of Dentists

Dr. Taneyhill has spent a lifetime in continuing dental education. He averages 100 hours of continuing dental education studies every year. He is an alumnus of the Center for Professional Development in Scottsdale, Arizona, and a graduate of the prestigious L.D. Pankey Institute for Advanced Dental Education in Florida, America’s premier center for post-graduate studies in dentistry.

In his free time, Dr. Taneyhill enjoys sailing the Chesapeake Bay with his wife, Karen, a Baltimore County special education department chairman, and his three children, Katie, Joe, and Philip. Since retiring from the Army National Guard, Dr. Taneyhill has volunteered at a dental clinic in Haiti at least one week each year, helping the poorest children and families.

Dr. Taneyhill received a Distinguished Service Award on March 30, 2016 at Morgan State University. Taneyhill established a pro bono clinic in 2012 at Our Daily Bread for the men in its Christopher Place Employment Academy.

Our Dental Team

Bel Air, MD dentist staff

Becky is one of our dental hygienists. She has been a dental hygienist for over 25 years and has been in our office since July 1995. She will ensure that each of our patients has a beautiful and healthy smile while in a relaxed, anxiety-free environment. Our hygienists offer comfort amenities like warming hand mitts and massage chair pads to help ease your dental fears while receiving superior dental care. Becky and her husband Jeff have three children, Brandon, Heather and Holly.



Amanda graduated from the University of Maryland dental hygiene program and has been a hygienist for 10 years. Amanda cares about all of her patients and loves building long lasting relationships with them. In her free time she enjoys spending time at the beach with her husband, son and two dogs.

Bel Air, MD dentist staff


Marsha has been a dental assistant for over 30 years. She has worked in this office for 25 years since October 1997. Marsha will help ensure that your dental visit goes as smoothly and comfortably as possible. She will take any X-rays that are necessary and also assist Dr. Mandras during each procedure. Marsha has two daughters, Bridget and Nicole and is married to her husband Mike.



Danielle graduated from Medix School and has been in the dental field for 15 years. She now runs the front desk operation. Danielle has been with Dr. Mandras since 2014. She lives in York County, PA with her son Landon.