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

Catherine A. O'Brien, RD

Individual provider Registered Dietitian · NPI 1083683536

Catherine A. O'Brien, RD is a Registered Dietitian in South Weymouth, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

541 Main St Ste 400
South Weymouth, MA 02190-1868
Phone: (781) 331-7799
Fax: (781) 331-9515
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 1207 (MA)

Record details

NPI number1083683536
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorNo
NPI enumeratedMarch 16, 2006
Last updated in NPPESJanuary 22, 2010

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