Meet our Doctor

Theodore N. Pappey, D.M.D.

Dr. Pappey joined the practice in 1983. He attained a Bachelor of Arts in Biology from Boston University in 1977. He earned his Doctor of Dental Medicine from Tufts University School of Dental Medicine in 1983. Following graduation, Dr. Pappey served as a clinical instructor in the Radiology department at Tufts. He is a member of the American Dental Association, Academy of General Dentistry, Massachusetts Dental Society, Merrimack Valley Dental Society, and the Lowell Dental Society.

Dean Chang - General Dentist

Dr. Chang received his Doctor of Medical Dentistry from the University of Pennsylvania School of Dental Medicine in Philadelphia, PA. He went on to complete a general practice residency at the Montefiore Medical Center/Albert Einstein College of Medicine in Bronx, NY. He has also had the honor of serving our country as a Lieutenant commander in the United States Navy Dental Corps. Dr. Chang is dedicated to clinical excellence and prides himself on providing exceptional, quality care and service to his patients.

When not providing top notch dental care in the office, Dr. Chang enjoys spending time with his wife, 2 daughters and dog, and traveling and experiencing new cultures and cuisines.

Dental Office

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Location & Hours

Our Location

155 Market St Lowell, MA 01852

Hours of Operation

Our Regular Schedule

Simply Dental of Lowell


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-3:00 pm