Catherine O'Brien, R.D.
NPI 1083683536 · Registered Dietitian · South Weymouth, MA
Catherine O'Brien, R.D. is a Registered Dietitian provider in South Weymouth, MA (NPI 1083683536).
Provider details
- NPI number
- 1083683536
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- R.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 1207 (MA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-16
- Last updated
- 2010-01-22
Frequently asked questions
- What is Catherine O'Brien's NPI number?
- Catherine O'Brien's National Provider Identifier (NPI) is 1083683536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine O'Brien's specialty?
- Catherine O'Brien is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Catherine O'Brien located?
- Catherine O'Brien's practice location on file with NPPES is 541 Main St, South Weymouth, MA 02190-1868.
- What is Catherine O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Catherine O'Brien is (781) 331-7799.
- Is Catherine O'Brien's NPI active?
- Yes — Catherine O'Brien's NPI (1083683536) is active in the NPPES registry as of the last update on 2010-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.