Margaret Duddy, APRN
Family Nurse Practitioner · Waltham, MA
Margaret Duddy, APRN is a family nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1528342193, issued on Sep 30, 2011. Check the license (Massachusetts RN2264173, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Duddy
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2264173 MA
Self-reported in NPPES; status is on the state search - Practice location
- 564 Main St, Waltham, MA 02452
- Phone
- (781) 693-3800
- Enumerated
- Sep 30, 2011
- Record last updated
- Oct 12, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111208000618); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 564 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ilana AmbrogiFamily Medicine Physician1720346737
- Dominique Auger, DPTPhysical Therapist1063067916
- Jessica Bonchi, DPTPhysical Therapist1639695653
- Lori Caddoo, MSPTPhysical Therapist1275608259
- Mark Drews, MDInternal Medicine Physician1184693616
- Dayana Escobar, DDSGeneral Practice Dentistry1386866556
Verify Margaret Duddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2264173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family nurse practitioner in 2024
34 Medicare Part D claims for 23 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Brigham And Womens Hospital IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
39 family nurse practitioner records list a practice address in Waltham
They are 39 of the 2,111 NPPES records with a practice address in Waltham, and 4,724 family nurse practitioner records in Massachusetts.
All 39 in Waltham → All 4,724 in Massachusetts → Every provider in Waltham →
Other family nurse practitioner records in Massachusetts
- Christina Abate, N.P.Boston, MA1235414970
- Katelynne Abbott, NPDanvers, MA1932355880
- Georgette Abboud, FNP-CHanscom Afb, MA1538593686
- Irfana Abdulhameed, FNPNorthborough, MA1417661786
- Christina Abouleish, NPNorwell, MA1700515772
- Christine Abraham, NPSouthborough, MA1215774658
- Catherine Abrams, FNP-CNorth Dartmouth, MA1528790599
- Wendy Abrams, FNPBoston, MA1962557801
- Michelle Abreu, FNP-BCArlington, MA1346138914
- Karolyn Abreu Blanco, FNP-BCLawrence, MA1043007644
Common questions
What is Margaret Duddy, APRN's NPI number?
Margaret Duddy, APRN's National Provider Identifier (NPI) is 1528342193, issued on Sep 30, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Duddy, APRN located?
The NPPES record lists a practice address at 564 Main St, Waltham, MA, 02452. Phone: (781) 693-3800. Providers update this record themselves, so call before visiting.
How can I verify Margaret Duddy, APRN's license?
NPPES lists Massachusetts license number RN2264173, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Duddy, APRN prescribe under Medicare Part D?
In 2024, Margaret Duddy, APRN had 34 Medicare Part D claims for 23 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.