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

Dr John a Duggan Inc

Organization Optometrist · NPI 1265507826

Dr John a Duggan Inc is an Optometrist in Chelmsford, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

3 Courthouse Ln Unit 1
Chelmsford, MA 01824
Phone: (978) 453-3541
Fax: (978) 458-3598
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 2186 (MA)

Record details

NPI number1265507826
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Duggan — President · (978) 453-3541
NPI enumeratedNovember 21, 2006
Last updated in NPPESDecember 7, 2009
Mailing address3 Courthouse Ln, Unit 1, Chelmsford, MA 01824

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