Welcome to MacDonnell Anesthesiology/Ambulatory Dental Anesthesia Associates, LLC


Sedation/Anesthesiology for Dentistry:

Dr. William (Bill) MacDonnell, a dentist anesthesiologist, has been working with dentists and dental specialists to provided dental patients dental care in a relaxed and comfortable state. Dr. MacDonnell provides your sedation/anesthesia (conscious sedation, IV sedation, deep sedation and general anesthesia) in your dentist’s office.

This website provides you with an overview of our practice and dental anesthesiology. As you navigate the site you’ll find information about MacDonnell Anesthesiology / Ambulatory Dental Anesthesia Associates, LLC, Dr. MacDonnell, appointment scheduling, etc. Our staff is dedicated to your comfort and prompt attention as well. Dr. MacDonnell works with dentists and dental specialists in both Connecticut and Western Massachusetts.  Please browse the site at your convenience and feel free to contact us at 860-561-1233 if you have any questions.

You will find our medical history, pre-operative instructions, post-operative instructions, and informed consent forms can be easily downloaded from the website.

You will find valuable information on the web site about dental anesthesia/sedation. Dr. MacDonnell believes informed patients are better prepared to make decisions about their choices for dental anesthesia/sedation, health and well-being. We encourage you to review this information to help you understand any dental anesthesia concerns.

Dr. MacDonnell is listed in the Hartford Magazine "Best Dentists" for 2014, 2015, 2016, and 2017 

Dr. MacDonnell is listed in the Hartford Magazine "Top Dentists" for 2019


State Rep. Derek Slap, Dr. Carolyn Malon, Dr. Bill MacDonnell, and State Rep. Dr. William A. Petit, Jr.