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Dr. Margaret Mary Johnson, O.D.

Optometrist in Hudson, MA · enumerated 2008 · practices at The Eye Care Center, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902052327

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Registry record

Entity type Individual (Type 1)
Name Dr. Margaret Mary Johnson
Credential O.D.
Sex Female
Practice address 10 Technology Dr, Hudson, MA, 01749
Phone (508) 485-6366
Fax (978) 568-0330
Enumeration date Aug 18, 2008
Last updated in NPPES Jan 22, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4688 (MA) Primary
152W00000X Optometrist Eye and Vision Services Providers · License ODTG00530 (RI) Secondary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Margaret Mary Johnson practice?
The practice location on file with NPPES is in Hudson, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Margaret Mary Johnson?
The National Provider Identifier (NPI) for Margaret Mary Johnson is 1902052327, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-22.