David M. Callahan, Ph.D.
Providing Psychological Services to 
Cape Cod and Southeastern Massachusetts

If the need arises, how likely are you to refer 
other persons to Dr. Callahan for similar services?

If you or your child participated in on-line testing, how satisfied are you that this was an effective way to meet?
2020-2021
From 2014-15, a Survey Monkey Survey was emailed to all persons receiving copies of reports for whom email addresses were available, including parents, patients, referral sources and other involved professionals. The data below reflect the responses of the first 100 responders.  In 2020-21, the same process was used to collect 69 responses via Google. The most recent survey included a question about the effectiveness of virtual contacts that were conducted over Zoom.
* based on 43 responses
Dr. Callahan is a kind and caring person who was able to keep my child involved over a lengthy session.

Dr. Callahan and his office staff were very professional and responsive during the scheduling phase and after. Dr. Callahan was great with my 5 year old. The evaluation took place via the computer due to Covid but, it went just as well as it would've if we were in person. He was very patient and through. I highly recommend Dr. Callahan.

Dr. Callahan's reports are very accurate portrayals of the person being tested.

I have been referring clients to Dr. Callahan for the past 20 years. He writes a comprehensive evaluation that assists with treatment interventions and planning.

Dr. Callahan’s office responded so quickly to our request and the Department was appreciative of that effort.

Don’t agree with part of assessment

Exceptional response

Dr. Callahan was very professional and did an amazing job testing my daughter. He made sure she understood what he was saying and he was very patient with her. She actually was wondering if she would have more appointments with him because she really likes him.

Thanks to Dr Callahan, we have answers and a diagnosis. We can't thank him enough!

thank you for your time and thoughtful feedback.

Overall a great experience.

Responsive, efficient, comprehensive and all around great experience. Appreciate the prompt turnaround time and email communication.
Dr. Callahan kept a 6-year old engaged and attentive in the online testing situation. Impressive. We learned a lot from the report, and the information will help us plan a more appropriate educational and behavioral program.

Dr. Callahan is very highly recommend by me anytime.

Dr. Callahan was great to work with, professional, and did great with speaking and building rapport quickly with the client! He was clear when presenting questions to the client, and was able to clarify when needed. The report was very detailed and covered all important points. The suggestions were also well listed and relatable to treatment in the future.

I was amazed that Dr Callahan was able to really capture who my son was in a virtual setting. He do an excellent job and was very thorough. I did not have any contact with the office and that is why I didn't answer question regarding the office or staff.

I found the questionnaire I was given to complete somewhat difficult. I felt that some questions were not easy to answer without an explanation.

Very thorough report.

thank you dr.callgan for my testing Nd my daughters somethings aryana and I have in common. BTW

I know that Dr. Callahan is extremely busy and I appreciate his and his staff's efforts to get the evaluation done as quickly as possible.

Very highly to recommend this Doctor… everything was done in a timely manner. The staff and everyone is very polite. Very highly to recommend them. I’m very happy I choose this doctor for my son’s evaluation.

Dr Callahan is a thorough, caring professional, works well with the child...I would highly recommend him.

Dr Callahan and his receptionist were very professional in there phone calls and emails . They let me know ahead of time what to expect and answered any questions . My daughter normally does not like men however I could tell she really connected with dr Callahan . Thank you for making this an easy process for us both!

Parent is also satisfied with the report and found it to be very thorough, clear, and helpful.

The information provided by Dr. Callahan was extremely useful as we plan for our son's sophomore year. Dr. Callahan was clear in every aspect of reporting; he was concise and efficient in communicating testing results. I would absolutely recommend him to others seeking neurological consulting services.

In my opinion, the evaluation was thorough and concise.

Below are all the additional comments made on the 2020-21 responses