Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Challenge Unlimited, Inc

Organization Voluntary or Charitable Agency · NPI 1679723985

Challenge Unlimited, Inc is a Voluntary or Charitable Agency in Andover, Massachusetts. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

450 Lowell St
Andover, MA 01810-5305
Phone: (978) 475-4056
Fax: (978) 475-4046
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Voluntary or Charitable Agency (primary) Taxonomy 251V00000X

Record details

NPI number1679723985
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mary O'Brien — Executive Director · (978) 475-4056
NPI enumeratedSeptember 23, 2008
Last updated in NPPESSeptember 23, 2008
Mailing address450 Lowell St, Andover, MA 01810-5305

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