Denis Patrick Callahan is a Clinical Social Worker based in Nashua, NH and is specialized in Clinical. Denis Patrick Callahan practices in Nashua, NH and has the professional credentials of MSW,LGSW. The NPI Number for Denis Patrick Callahan is 1134364672 and holds a License No. 1608 (New Hampshire).
The current practice location address for Denis Patrick Callahan is 5 Pine Street Ext Unit 2S, Nashua, NH and can be reached out via phone at 202-903-6876.
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