Dr. Guy Coby


Guy Coby, DMD is a Diplomate of the American Board of Orthodontics and is a member of the College of Diplomates of the American Board of Orthodontists. Dr. Coby is a Clinical Associate Professor and Co-Clinical Director of Orthodontics, University of Pennsylvania School of Dental Medicine and Guest Lecturer at the Harvard School of Dental Medicine.

Dr. Coby attended Albright college prior to the University of Pittsburgh School of Dental Medicine. He then pursued specialty training in orthodontics at the University of Pennsylvania School of Dental Medicine.

He has been elected by his peers to the following leadership positions within the field of orthodontics:

  • President, Board of Directors, Greater Philadelphia Society of Orthodontists
  • President, Pennsylvania Association of Orthodontists
  • President, University of Pennsylvania Orthodontic Alumni Association
  • President, Lehigh Valley Society of Orthodontists

Dr. Coby has a strong desire to always better himself professionally and believes in being a “lifetime learner”. He has lectured internationally on a variety of clinical orthodontic topics including the new materials and techniques within his field. He uses this knowledge in his practice to ensure that patients have access to the latest and best technology in their treatment. It has been a privilege for Dr. Coby to provide orthodontic treatment for a number of dentists and their family members in the areas where he practices. 


Dr. Coby, his wife, and two daughters live on a farm where they enjoy caring for horses, goats, llamas, dogs, and cats.

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About Us

Newtown Dentistry for Kids, Newtown Orthodontics, and Newtown Dentistry for Adults are proud of our commitment to creating a dental home for your entire family. We utilize the latest technology and educational programs to create a beautiful healthy smiles that will last you and your family a lifetime.


46 Blacksmith Rd.
Suite "Tooth"
Newtown, PA 18940

Phone: (215) 504-5437
Fax: (215) 504-5844

Hours of Operation

Monday: 8:30am - 6:00pm
Tuesday: 8:00am - 5:00pm
Wednesday: 8:00am - 6:30pm
Thursday: 9:00am - 7:30pm
Friday: 7:30am - 4:00pm
Saturday: (During the school year)