Hillary Monroe Mamis, RD, LDN
Registered Dietitian · Lexington, MA
Hillary Monroe Mamis, RD, LDN is a registered dietitian with a practice address in Lexington, Massachusetts, and NPI 1740617596, issued on Oct 10, 2013. Check the license (Massachusetts 3389, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hillary Monroe Mamis
- Credential
- RD, LDN
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 3389 MA
Self-reported in NPPES; status is on the state search - Practice location
- 33 Bedford St, Lexington, MA 02420
- Phone
- (781) 674-1189
- Enumerated
- Oct 10, 2013
- Record last updated
- May 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150508001910); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 2,244 in Massachusetts → Look up another NPI →
Also registered at 33 Bedford St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heidi Davidson, M.S., R.D., L.D.N.Registered Dietitian1932435096
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- Elisa Fulton, DMDEndodontics1346360179
- Natalie Gornstein, LICSWClinical Social Worker1184864803
Verify Hillary Monroe Mamis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 3389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Nutrition Factory LLCNorth Andover, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hillary Monroe Mamis among 2,244 registered dietitian records in Massachusetts
Hillary Monroe Mamis, RD, LDN is one of 2,244 registered dietitian records with a practice address in Massachusetts. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 37% of them.
- NPI issued2013 · 37% of these records are older, 60% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated2012 · median 2011 among the 202 with a school on file
- Record last updated2015 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 registered dietitian records list a practice address in Lexington
They are 18 of the 1,467 NPPES records with a practice address in Lexington, and 2,244 registered dietitian records in Massachusetts.
All 2,244 in Massachusetts → Every provider in Lexington → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Jaelyn AngeloLexington, MA 024201720917438
- Amy Aubertin, MS RD LDNLexington, MA 024201285721191
- Heather Bell, RDLexington, MA 024201811067721
- Heidi Davidson, M.S., R.D., L.D.N.Lexington, MA 024201932435096
- Paula Karim, RD, LDNLexington, MA 024201023945466
- Jennifer Locke, RD LDNLexington, MA 024201538544275
- Mansi Patel, MPH, RDLexington, MA 024201356224786
- Elizabeth Pearl, RD LDNLexington, MA 024201386775898
Common questions
What is Hillary Monroe Mamis, RD, LDN's NPI number?
Hillary Monroe Mamis, RD, LDN's National Provider Identifier (NPI) is 1740617596, issued on Oct 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Hillary Monroe Mamis, RD, LDN located?
The NPPES record lists a practice address at 33 Bedford St, Lexington, MA, 02420. Phone: (781) 674-1189. Providers update this record themselves, so call before visiting.
How can I verify Hillary Monroe Mamis, RD, LDN's license?
NPPES lists Massachusetts license number 3389, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.