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

Individual provider Registered Dietitian · NPI 1740617596

Hillary Monroe Mamis, RD, LDN is a Registered Dietitian OR Nutrition Professional in Lexington, Massachusetts. Qualified in 2012, 14 years ago. Practices with Nutrition Factory LLC, a 4-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
14
Licensed in
MA
In the registry since
2013
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

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Practice location Address checks out

33 Bedford St Sutie 20
Lexington, MA 02420-4319
Phone: (781) 674-1189
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 3389 (MA)

Record details

NPI number1740617596
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , LDN
Sole proprietorNo
NPI enumeratedOctober 10, 2013
Last updated in NPPESMay 6, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyREGISTERED DIETITIAN OR NUTRITION PROFESSIONAL
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Nutrition Factory Llc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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