Margaret Ullmann-Weil, RD
Registered Dietitian · Cambridge, MA
Margaret Ullmann-Weil, RD is a registered dietitian with a practice address in Cambridge, Massachusetts, and NPI 1952374894, issued on Feb 10, 2006. Check the license (Massachusetts 832, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Ullmann-Weil
- Credential
- RD
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 832 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1611 Cambridge St, Cambridge, MA 02138
- Phone
- (617) 629-6444
- Enumerated
- Feb 10, 2006
- Record last updated
- Oct 28, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (617) 629-6070
- Medicare enrollment
- Enrolled (PECOS I20050801000796); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 2,244 in Massachusetts → Look up another NPI →
Also registered at 1611 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Ullmann-Weil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 832Check 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
- Atrius Health IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Ullmann-Weil among 2,244 registered dietitian records in Massachusetts
Margaret Ullmann-Weil, RD 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 90% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated1979 · median 2011 among the 202 with a school on file
- Record last updated2020 · 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).
69 registered dietitian records list a practice address in Cambridge
They are 69 of the 5,145 NPPES records with a practice address in Cambridge, and 2,244 registered dietitian records in Massachusetts.
All 2,244 in Massachusetts → Every provider in Cambridge → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Barbara Boothby, R.D.Cambridge, MA 021381174615470
- Emilie Burgess, MS, RDN, LDNCambridge, MA 021381912406331
- Denise Conforti, MS, RD, LDNCambridge, MA 021381245460021
- Lauren Dear, RDCambridge, MA 021381942642798
- Marci Evans, MS, RDCambridge, MA 021381114159191
- Michelle Gallant, MS, RDN, LDNCambridge, MA 021381730286352
- Robin Goldstein, R.D.Cambridge, MA 021381538427737
- Elizabeth Jarrard, RDCambridge, MA 021381568729556
Common questions
What is Margaret Ullmann-Weil, RD's NPI number?
Margaret Ullmann-Weil, RD's National Provider Identifier (NPI) is 1952374894, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Ullmann-Weil, RD located?
The NPPES record lists a practice address at 1611 Cambridge St, Cambridge, MA, 02138. Phone: (617) 629-6444. Providers update this record themselves, so call before visiting.
How can I verify Margaret Ullmann-Weil, RD's license?
NPPES lists Massachusetts license number 832, 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.