Maura J. Brennan, MD
Geriatric Medicine (Internal Medicine) Physician · Springfield, MA
Maura J. Brennan, MD is a geriatric medicine (internal medicine) physician with a practice address in Springfield, Massachusetts, and NPI 1962595421, issued on Oct 2, 2006. Check the license (Massachusetts 73468, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Maura J. Brennan
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 73468 MA
Self-reported in NPPES; status is on the state search - Practice location
- 759 Chestnut Street, Springfield, MA 01107
- Phone
- (413) 794-3147
- Enumerated
- Oct 2, 2006
- Record last updated
- Jan 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (413) 794-4054
- Medicare enrollment
- Enrolled (PECOS I20050616001174); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →
Also registered at 759 Chestnut Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Peter Antkowiak, M.D.Emergency Medicine Physician1700249273
- Ines Ingrid Anton, NPFamily Nurse Practitioner1922301613
- Alicia Apostoles, RNPediatric Nurse Practitioner1780317792
- Inna Baraban, PA-CSurgical Physician Assistant1609326552
Verify Maura J. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 73468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
34 Medicare Part D claims, against an average of 4,246 among the 3,116 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
- Baystate Medical Practices IncSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maura J. Brennan among 225 geriatric medicine (internal medicine) physician records in Massachusetts
Maura J. Brennan, MD is one of 225 geriatric medicine (internal medicine) physician records with a practice address in Massachusetts. 71% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 44% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1989 · median 2000 among the 119 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts
There are 225 geriatric medicine (internal medicine) physician records in Massachusetts.
All 225 in Massachusetts → Every provider in Springfield → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Ujjwala Seetha Bhagavatula, M.D.Springfield, MA 011071336592369
- Alison Grover, MD, MPHSpringfield, MA 011071326174574
- Erin Leahy, M.D.Springfield, MA 011071235339607
- Victoria Nguyen, DOSpringfield, MA 011071518533785
- Yael Tarshish, MDSpringfield, MA 011071285163923
- Deepu Thomas, MDSpringfield, MA 011071932376803
- Lubna Attal, MDLongmeadow, MA 011061073132346
- Stephen Bonasera, MDLongmeadow, MA 011061780632729
Common questions
What is Maura J. Brennan, MD's NPI number?
Maura J. Brennan, MD's National Provider Identifier (NPI) is 1962595421, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maura J. Brennan, MD located?
The NPPES record lists a practice address at 759 Chestnut Street, Springfield, MA, 01107. Phone: (413) 794-3147. Providers update this record themselves, so call before visiting.
How can I verify Maura J. Brennan, MD's license?
NPPES lists Massachusetts license number 73468, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maura J. Brennan, MD prescribe under Medicare Part D?
In 2024, Maura J. Brennan, MD had 34 Medicare Part D claims; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.