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

Individual provider Clinic/Center · NPI 1245539097

Matthew W Callahan is a Clinic/Center in Billerica, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2011.

In the registry since
2011
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Practice location Address checks out

15 Islington St
Billerica, MA 01821-5067
Phone: (978) 362-1742
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinic/Center (primary) Taxonomy 261Q00000X

Record details

NPI number1245539097
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 18, 2011
Last updated in NPPESMarch 18, 2011