John R Colby is an Addiction (Substance Use Disorder) Counselor based in Derry, NH and is specialized in Addiction (Substance Use Disorder). John R Colby practices in Derry, NH and has the professional credentials of MSWLADC. The NPI Number for John R Colby is 1639123011 and holds a License No. LADC380 (New Hampshire).

The current practice location address for John R Colby is 43 Birch Street, Derry, NH and can be reached out via phone at 603-434-1577 and via fax at 603-434-3101. You can also correspond with John R Colby through the mailing address at 43 BIRCH STREET, DERRY, NH - 03038 (mailing address contact number: 603-434-1577).