Diane Duelfer, MS, RD
NPI 1043657711 · Pediatric Nutrition Registered Dietitian · Morristown, NJ
Diane Duelfer, MS, RD is a Pediatric Nutrition Registered Dietitian provider in Morristown, NJ (NPI 1043657711).
Provider details
- NPI number
- 1043657711
- Entity type
- Individual
- Primary specialty
- Pediatric Nutrition Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RD
- Sex
- Female
- Sole proprietor
- Yes
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
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2013-06-04
- Last updated
- 2013-06-04
Frequently asked questions
- What is Diane Duelfer's NPI number?
- Diane Duelfer's National Provider Identifier (NPI) is 1043657711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Duelfer's specialty?
- Diane Duelfer is listed in the NPPES registry with a primary specialty of Pediatric Nutrition Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Diane Duelfer located?
- Diane Duelfer's practice location on file with NPPES is 100 Madison Ave # 82, Morristown, NJ 07960-6136.
- What is Diane Duelfer's phone number?
- The practice phone number listed in the NPPES registry for Diane Duelfer is (973) 971-4026.
- Is Diane Duelfer's NPI active?
- Yes — Diane Duelfer's NPI (1043657711) is active in the NPPES registry as of the last update on 2013-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.