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Meet the Team


Your Denver CO Dentist

James C. Downs, DMD

James C. Downs, DMD: Received his degree from Tufts Universtity School of Dental Medicine. Since then, he is recognized as a key opinion leader. Dr. Downs is an expert in comprehensive restorative treatment. He currently lectures throughout the US and Europe for the Dr. Dick Barnes Group. In his spare time, he likes to go RVing, fish, golf and spends time with his kids.

Dr. Downs went into the field of dentistry to figure out how to help himself. At 16 years old, he was kneed in the jaw during a soccer game. The hit left him unconscious on the field and when he woke, he had two fractures on his jaw and two teeth missing. This trauma slowly deteriorated his other teeth through the years. Some of his teeth ended up dying and looking very dark. His jaw would periodically lock open. He went through many dental continual education courses to be able to find the best way to get his own teeth and bite restored. Dr. Downs is a very empathetic and caring dentist due to the experiences he has been through.

Dr. Le at LeDowns Dentistry in Denver CO.

Nickie K. Lê, DDS

Nickie K. Lê, DDS: Received her degree from the Universtiy of the Pacific – Arthur A. Dugoni School of Dentistry. She is a member of the American Dental Association, Colorado Dental Association, Rocky Mountain Dental Association, American Academy of Facial Esthetics (AAFE). She also assists in teaching some of the courses for the Dr. Dick Barnes Group. Dr. Lê likes to sing, dance, travel and spends time with her kids.

Dr. Lê had an interest in studying dentistry because she had a bad experience as a child. At nine years old, she came into the dental office for the first time and was diagnosed with 9 cavities! During the filling appointment, the dentist was two hours late and once he got her into the treatment room, he was rough and belittled her for her situation. From that experience, she had always wanted to become a better dentist than the one she had.

Now that she is a dentist herself, she is much more cognitive of her patients’ needs and feelings. During her 10 plus years as a dentist, what she loves most is helping her patients reach their goal of ultimate oral health and owning a functional and dazzling smile.

Dr. Zelesky

John K. Zalesky, DMD, MBS

John K. Zalesky, DMD, MBS: received his Masters of Biomedical Science from the University of Medicine and Dentistry of New Jersey School of Biomedical Sciences. He received his DMD degree from Nova Southeastern University College of Dental Medicine. He completed General Practice Residency at Denver Health Medical Center. He completed a second year as the Chief resident at Colorado University School of Dental Medicine General Practice Residency. He is a member of the American Dental Association, Colorado Dental Association, Metro Denver Dental Society and Academy of General Dentistry.

In his free time, Dr. Zalesky enjoys the outdoors, playing golf, fishing, hockey, photography and spending time with friends and family.

Patient Coordinators

All front office coordinators have been in the medical and dental field before joining LêDowns Dentistry. They come with a vast knowledge of patient care. They are present to assist you in maneuvering your insurance benefits, financial options and any questions you may have regarding your dental care with us.


You may find that in most cases, patients see the hygienists more often than they see the dentists. This is why our hygienists focus on getting to know you and your goals for maintaining your periodontal health. They will spend the time to encourage, educate and recommend the necessary treatment for you to keep your teeth for a lifetime. With the Piezon, AirFlow polisher and their skills in hand instruments, your cleaning appointments will be faster and much more effective than just your traditional hand scaling alone.

Chairside Assistants

Our assistants are specially trained for patient comfort and care. They are compassionate, efficient and assist our doctors with a gentle touch. They strive to make your appointment as relaxing as possible so that you can go on with your day. They will do what is necessary to put you at ease during your visit with us.