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

Katie Ellen Mathlin, RDN

Individual provider Registered Dietitian · NPI 1851745657

Katie Ellen Mathlin, RDN is a Registered Dietitian in Portsmouth, New Hampshire. Practices as a sole proprietor. Licensed in New Hampshire and Rhode Island.

Licensed in
NH, RI
In the registry since
2016
Specialties on file
2
What do these letters mean?
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.

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Practice location Address checks out

15 Rye St
Portsmouth, NH 03801-6829
Phone: (774) 282-0364
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 0689 (NH)
Registered Dietitian Taxonomy 133V00000X · Licence LDN00898 (RI)

Record details

NPI number1851745657
Entity typeIndividual (Type 1)
GenderFemale
Credentials RDN
Sole proprietorYes
NPI enumeratedApril 18, 2016
Last updated in NPPESSeptember 15, 2017

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