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

Individual provider Registered Dietitian · NPI 1447639646

Mary Barrett Barkley, RDN, MLT is a Registered Dietitian in Allentown, New Jersey. Practices as a sole proprietor. Registered with an NPI since 2015.

In the registry since
2015
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

17 Probasco Dr
Allentown, NJ 08501-1654
Phone: (609) 638-9802
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1447639646
Entity typeIndividual (Type 1)
GenderFemale
Credentials RDN , MLT
Sole proprietorYes
NPI enumeratedMay 21, 2015
Last updated in NPPESMay 21, 2015

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