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

Mary T Williams, RD

Individual provider Registered Dietitian · NPI 1164667200

Mary T Williams, RD is a Registered Dietitian in Wilmington, Delaware. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

3506 Kennett Pike
Wilmington, DE 19807-3019
Phone: (302) 661-3000
Fax: (302) 661-3080
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1164667200
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorNo
NPI enumeratedDecember 3, 2008
Last updated in NPPESDecember 3, 2008
Mailing addressPo Box 30170, Wilmington, DE 19805-7170

Other providers in Wilmington