We are committed to continuously improving access to our goods and services by individuals with disabilities. This website is currently being updated to enhance the usability and experience for persons with disabilities. If you are unable to use any aspect of this website because of a disability, please call 978.635.9995 and we will provide you with prompt personalized assistance.

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Meet the Team

Shannon Callison

Shannon Callison is truly a “people person”. She has a knack for connecting with people and a passion for helping others, which makes her role as Office Manager a perfect fit for her. She is inspired by the daily interaction with our patients and getting to know each one as an individual with their own story. She loves seeing each person leave their appointment with Dr. Handa with a new level of confidence and a beautiful smile.

Shannon lives in Acton with her husband of 20 years, Wade, and their four children (two boys and two girls). She is definitely a creative spirit. In 1996, Shannon graduated from Texas A&M University with a degree in English and Communications and worked as writer at a non-profit following college. She has always loved theater, and when she moved to Massachusetts she had the opportunity to run a children’s theater company for five years, directing and producing more than 20 shows featuring kids of all ages, from kindergarten to high-school. Shannon is currently a Board Member of Acton-Boxborough Friends of Drama.

Shannon grew up in nine different states as part of a military family. Out of that experience grew a love for travel and exploration, which she shares with her family. She has visited almost every state in the U.S. and has journeyed abroad to many countries, including Belarus, England, Scotland, Germany, Uganda, and Bermuda.

Ratti Handa

Request an Appointment
To book an appointment, feel free to call us at 978.635.9995 or complete the form below.

Terms and Conditions

Here at Ratti Handa, we work diligently to protect our patient's rights and privacy. Requesting an appointment via our Internet portal is considered part of what HIPAA has identified as electronically protected information (ePHI). Unfortunately, despite the best efforts we make or take, there are people or entities that may attempt to intercept the data you transmit to us. By checking the box, and electronically making an appointment, you understand that you are making an appointment over the internet and that Ratti Handa will keep this information confidential but cannot guarantee that others, outside of our practice, may not illegally intercept this communication. As a result of continuing, you are sending this transmission and accepting the inherent risk(s) associated with making this request for an appointment. As an alternative, you are always welcome to contact our office via telephone to schedule your appointment.


The information presented here is not intended or implied to be medical advice, diagnosis, or treatment. It should be used for informational purposes only.