Bruce T. Brennan, MD
Internal Medicine Physician · Ansonia, CT
Bruce T. Brennan, MD is an internal medicine physician with a practice address in Ansonia, Connecticut, and NPI 1013927797, issued on Aug 8, 2006. Check the license (Connecticut 022798, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Bruce T. Brennan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 022798 CT
Self-reported in NPPES; status is on the state search - Practice location
- 22 Westfield Ave, Ansonia, CT 06401
- Phone
- (203) 734-7100
- Enumerated
- Aug 8, 2006
- Record last updated
- Aug 16, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (203) 734-3392
- Medicaid ID
- 1227982 CT
- Medicare enrollment
- Enrolled (PECOS I20100910000435); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 22 Westfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Dodge, PA-CPhysician Assistant1558402230
- Jeffrey Dreznick, M.D.Gastroenterology Physician1902895436
- Roy Kalman, M.D.Gynecology Physician1053335299
- Deborah Levenson, M.D.Gastroenterology Physician1952406688
- Michael Lipcan, MDGastroenterology Physician1770624447
- Ashish Malhotra, MDGastroenterology Physician1750589883
Verify Bruce T. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 022798Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,914 Medicare Part D claims for 193 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium254 claims
- Metformin Hcl172 claims
- Amlodipine Besylate160 claims
- Lisinopril75 claims
- Lisinopril-Hydrochlorothiazide74 claims
- Jardiance72 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.
Industry payments in 2024: $1,788.20
15 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bruce T. Brennan among 2,623 internal medicine physician records in Connecticut
Bruce T. Brennan, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1978 · median 2004 among the 1,646 with a school on file
- Record last updated2010 · 61% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in Ansonia
They are 10 of the 203 NPPES records with a practice address in Ansonia, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Ansonia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Veronica Balbuena Hurtado, MDAnsonia, CT 064011700522703
- Unknown Bilori, M.D.Ansonia, CT 064011760762090
- Aisha Khan, MDAnsonia, CT 064011265939540
- David Marks, M.D.Ansonia, CT 064011841486149
- Fiona Marlow, M.D.Ansonia, CT 064011194392894
- Muhammad Qadir, M.D.Ansonia, CT 064011356340319
- Ian Schein, MDAnsonia, CT 064011386663243
- Jonathan Simon, M.D.Ansonia, CT 064011073565511
Common questions
What is Bruce T. Brennan, MD's NPI number?
Bruce T. Brennan, MD's National Provider Identifier (NPI) is 1013927797, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bruce T. Brennan, MD located?
The NPPES record lists a practice address at 22 Westfield Ave, Ansonia, CT, 06401. Phone: (203) 734-7100. Providers update this record themselves, so call before visiting.
How can I verify Bruce T. Brennan, MD's license?
NPPES lists Connecticut license number 022798, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Bruce T. Brennan, MD prescribe under Medicare Part D?
In 2024, Bruce T. Brennan, MD had 1,914 Medicare Part D claims for 193 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.