Search › New Hampshire › 101YA0400X
John Colby, MSW LADC
NPI 1639123011 · on the registry since 2006
Practice
- Address
- 43 Birch Street
Derry, NH 03038 - Phone
- (603) 434-1577
- Fax
- (603) 434-3101
- Clinicians at this address
- 7
Registry record
- Primary taxonomy
- 101YA0400X
101YA0400X
- Licence states on file
- NH
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-07-13
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in New Hampshire