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

Mr. John J Sweeney, RD, CDN

Individual provider Nutritionist · NPI 1356580021

Mr. John J Sweeney, RD, CDN is a Nutritionist in Southold, New York. Practices as a sole proprietor. Licensed in Illinois and New York.

Licensed in
IL, NY
In the registry since
2009
Specialties on file
2
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

930 Jasmine Ln
Southold, NY 11971-3071
Phone: (631) 765-1267
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 721012 (IL)
Nutritionist Taxonomy 133N00000X · Licence 001098-1 (NY)

Record details

NPI number1356580021
Entity typeIndividual (Type 1)
GenderMale
Credentials RD , CDN
Sole proprietorYes
NPI enumeratedFebruary 19, 2009
Last updated in NPPESFebruary 19, 2009
Mailing address930 Jasmine Ln, Southold, NY 11971-3071