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

Bi-Sek Hsiao, PHD, MS, RD, LDN

Individual provider Registered Dietitian · NPI 1548148935

Bi-Sek Hsiao, PHD, MS, RD, LDN is a Registered Dietitian in Plainfield, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2025
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

See every abbreviation used in this directory →

Practice location Address checks out

215 Prospect St
Plainfield, MA 01070-9753
Phone: (413) 329-7096
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 5676 (MA)

Record details

NPI number1548148935
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , MS , RD , LDN
Sole proprietorYes
NPI enumeratedAugust 25, 2025
Last updated in NPPESAugust 25, 2025
Certification dateAugust 24, 2025