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

Mrs. Sarah Elizabeth Hammaker, RD, LDN

Individual provider Registered Dietitian · NPI 1801028873

Mrs. Sarah Elizabeth Hammaker, RD, LDN is a Registered Dietitian in Hagerstown, Maryland. Licensed in Maryland. Registered with an NPI since 2009.

Licensed in
MD
In the registry since
2009
What do these letters mean?
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

222 E Oak Ridge Dr Ste 1800
Hagerstown, MD 21740-7858
Phone: (301) 739-0090
Fax: (301) 739-0288
Show map & directions

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

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence DX2580 (MD)

Record details

NPI number1801028873
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , LDN
Sole proprietorNo
NPI enumeratedAugust 10, 2009
Last updated in NPPESAugust 10, 2009

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