IndividualActive
Catherine Diehl, MS, CNS
NPI 1477201820 · Nutritionist · Trumbull, CT
Catherine Diehl, MS, CNS is a Nutritionist provider in Trumbull, CT (NPI 1477201820).
Provider details
- NPI number
- 1477201820
- Entity type
- Individual
- Primary specialty
- NutritionistDietary & Nutritional Service Providers
- Credential
- MS, CNS
- Sex
- Female
- Sole proprietor
- Yes
- License
- CNS18138 (CT)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
98 Woolsley Ave
Trumbull, CT 06611-4460
Phone: (203) 858-4615
Street-level locationGet directions
Mailing address
98 Woolsley Ave
Trumbull, CT 06611-4460
Registry dates
- Enumerated
- 2022-03-15
- Last updated
- 2022-03-15
- Certified
- 2022-03-15
Frequently asked questions
- What is Catherine Diehl's NPI number?
- Catherine Diehl's National Provider Identifier (NPI) is 1477201820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Diehl's specialty?
- Catherine Diehl is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).
- Where is Catherine Diehl located?
- Catherine Diehl's practice location on file with NPPES is 98 Woolsley Ave, Trumbull, CT 06611-4460.
- What is Catherine Diehl's phone number?
- The practice phone number listed in the NPPES registry for Catherine Diehl is (203) 858-4615.
- Is Catherine Diehl's NPI active?
- Yes — Catherine Diehl's NPI (1477201820) is active in the NPPES registry as of the last update on 2022-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.