Dieu Thuy Ly, D.M.D
Endodontics · N Chelmsford, MA
Dieu Thuy Ly, D.M.D is an endodontics with a practice address in N Chelmsford, Massachusetts, and NPI 1265534358, issued on Sep 1, 2006. Check the license (Massachusetts 18772, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dieu Thuy Ly
- Credential
- D.M.D
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- 18772 MA
Self-reported in NPPES; status is on the state search - Practice location
- 73 Princeton St, N Chelmsford, MA 01863
- Phone
- (978) 251-1515
- Enumerated
- Sep 1, 2006
- Record last updated
- Apr 10, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (978) 251-1616
- Entity
- Type 1 · individual
8 nearest endodontics records → All 276 in Massachusetts → Look up another NPI →
Also registered at 73 Princeton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carolinda Sterczala, MSW LICSWClinical Social Worker1033186424
- Paul Sweeney, NPPsychiatric/Mental Health Nurse Practitioner1255749750
- Marc Zauderer, DMDGeneral Practice Dentistry1598799579
Verify Dieu Thuy Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 18772Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average endodontics in 2024
49 Medicare Part D claims for 40 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin34 claims
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.
Dieu Thuy Ly among 276 endodontics records in Massachusetts
Dieu Thuy Ly, D.M.D is one of 276 endodontics records with a practice address in Massachusetts. 61% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 60% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2015 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in Massachusetts
There are 276 endodontics records in Massachusetts.
All 276 in Massachusetts → Every provider in N Chelmsford → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Timothy Carter, DDSNorth Chelmsford, MA 018631225152358
- Jack Gilad, DMDNorth Chelmsford, MA 018631952319956
- Ryan Needle, DDSNorth Chelmsford, MA 018631851915417
- Robert Beaudry, DDSMerrimac, MA 018601710999206
- Howard Yoon, DMDReading, MA 018671578086708
- Simon Beylin, DDS, MDTLowell, MA 018521629352661
- Heidar ZohreheiLowell, MA 018521407365703
- Mona El-Sheikh, D.M.D.Wakefield, MA 018801225150048
Common questions
What is Dieu Thuy Ly, D.M.D's NPI number?
Dieu Thuy Ly, D.M.D's National Provider Identifier (NPI) is 1265534358, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dieu Thuy Ly, D.M.D located?
The NPPES record lists a practice address at 73 Princeton St, N Chelmsford, MA, 01863. Phone: (978) 251-1515. Providers update this record themselves, so call before visiting.
How can I verify Dieu Thuy Ly, D.M.D's license?
NPPES lists Massachusetts license number 18772, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Dieu Thuy Ly, D.M.D prescribe under Medicare Part D?
In 2024, Dieu Thuy Ly, D.M.D had 49 Medicare Part D claims for 40 beneficiaries; the average among endodontics prescribers was 121. 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.