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

MS. Diane Z. Duelfer, MS, RD

Individual provider Pediatric Nutrition Registered Dietitian · NPI 1043657711

MS. Diane Z. Duelfer, MS, RD is a Pediatric Nutrition Registered Dietitian in Morristown, New Jersey. Practices as a sole proprietor. Registered with an NPI since 2013.

In the registry since
2013
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.

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Practice location Address checks out

100 Madison Ave # 82
Morristown, NJ 07960-6136
Phone: (973) 971-4026
Fax: (973) 290-7365
Show map & directions

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

Specialties & licences

Pediatric Nutrition Registered Dietitian (primary) Taxonomy 133VN1004X

Record details

NPI number1043657711
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD
Sole proprietorYes
NPI enumeratedJune 4, 2013
Last updated in NPPESJune 4, 2013

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