Margaret A. Sun, MD
Family Medicine Physician · East Providence, RI
Margaret A. Sun, MD is a family medicine physician with a practice address in East Providence, Rhode Island, and NPI 1174508584, issued on Dec 8, 2005. Check the license (Rhode Island RI8624, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Margaret A. Sun
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- RI8624 RI
Self-reported in NPPES; status is on the state search - Practice location
- 1990 Pawtucket Ave, East Providence, RI 02914
- Phone
- (401) 632-0956
- Enumerated
- Dec 8, 2005
- Record last updated
- Apr 22, 2026
- Fax
- (401) 633-6094
- Medicaid ID
- 7004039 RI
- Medicare enrollment
- Enrolled (PECOS I20101103001266); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 475 in Rhode Island → Look up another NPI →
Verify Margaret A. Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license RI8624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average family medicine physician in 2024
2,217 Medicare Part D claims for 121 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 54 claims were for opioids.
Most prescribed
- Atorvastatin Calcium135 claims
- Lisinopril108 claims
- Levothyroxine Sodium103 claims
- Hydrochlorothiazide72 claims
- Omeprazole71 claims
- Losartan Potassium56 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.
Margaret A. Sun among 475 family medicine physician records in Rhode Island
Margaret A. Sun, MD is one of 475 family medicine physician records with a practice address in Rhode Island. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1991 · median 2008 among the 282 with a school on file
- Record last updated2026 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family medicine physician records list a practice address in East Providence
They are 11 of the 779 NPPES records with a practice address in East Providence, and 475 family medicine physician records in Rhode Island.
All 475 in Rhode Island → Every provider in East Providence → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Bianco, DOEast Providence, RI 029141649355991
- Peter Brassard, M.D.East Providence, RI 029141609877489
- Myra Chaudary, D.O.East Providence, RI 029141821478124
- Manoj Garg, D.O.East Providence, RI 029141285610600
- David Leibowitz, D.O.East Providence, RI 029141477570018
- John McGonigle, M.D.East Providence, RI 029141982717807
- Daniel Shreve, MDEast Providence, RI 029141134239767
- Karen Smigel, MDEast Providence, RI 029141114905528
Common questions
What is Margaret A. Sun, MD's NPI number?
Margaret A. Sun, MD's National Provider Identifier (NPI) is 1174508584, issued on Dec 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Margaret A. Sun, MD located?
The NPPES record lists a practice address at 1990 Pawtucket Ave, East Providence, RI, 02914. Phone: (401) 632-0956. Providers update this record themselves, so call before visiting.
How can I verify Margaret A. Sun, MD's license?
NPPES lists Rhode Island license number RI8624, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Margaret A. Sun, MD prescribe under Medicare Part D?
In 2024, Margaret A. Sun, MD had 2,217 Medicare Part D claims for 121 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.