Troyen A. Brennan, M.D.
Internal Medicine Physician · Woonsocket, RI
Troyen A. Brennan, M.D. is an internal medicine physician with a practice address in Woonsocket, Rhode Island, and NPI 1174686265, issued on Dec 19, 2006. Check the license on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Troyen A. Brennan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 55445 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Cvs Dr, Woonsocket, RI 02895
- Phone
- (401) 770-4801
- Enumerated
- Dec 19, 2006
- Record last updated
- Dec 21, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (401) 770-6463
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 1 Cvs Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yasmin AbdulkadirPharmacist1750269460
- Ali Abdulmajeed, PHARMACISTPharmacist1114640257
- Nawaf AlkhafajiPharmacist1467174474
- Michael AzarPharmacist1366261463
- Yolanda Baez, R.PHPharmacist1518137157
- James Baker, PHARM.D.Pharmacist1427052968
Verify Troyen A. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and DisciplineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
60 Medicare Part D claims for 45 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Naloxone Hcl46 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.
Troyen A. Brennan among 1,033 internal medicine physician records in Rhode Island
Troyen A. Brennan, M.D. is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 62% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2010 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 internal medicine physician records list a practice address in Woonsocket
They are 24 of the 1,112 NPPES records with a practice address in Woonsocket, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Woonsocket → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Irfan Ahmad, M.D.Woonsocket, RI 028951063460426
- Paul Alexandrov, M.D.Woonsocket, RI 028951215358510
- Saman Ali, M.D.Woonsocket, RI 028951730414863
- Stanley Balon, M.D.Woonsocket, RI 028951003860172
- Glenn Fort, MDWoonsocket, RI 028951114900024
- Jibran Khan, M.D.Woonsocket, RI 028951902803935
- Catherine Kigonya, M.DWoonsocket, RI 028951760632483
- Syed Mehdi, MDWoonsocket, RI 028951962439786
Common questions
What is Troyen A. Brennan, M.D.'s NPI number?
Troyen A. Brennan, M.D.'s National Provider Identifier (NPI) is 1174686265, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Troyen A. Brennan, M.D. located?
The NPPES record lists a practice address at 1 Cvs Dr, Woonsocket, RI, 02895. Phone: (401) 770-4801. Providers update this record themselves, so call before visiting.
How can I verify Troyen A. Brennan, M.D.'s license?
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 Troyen A. Brennan, M.D. prescribe under Medicare Part D?
In 2024, Troyen A. Brennan, M.D. had 60 Medicare Part D claims for 45 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.