Brett Hassan, M.D.
Gastroenterology Physician · Milford, MA
Brett Hassan, M.D. is a gastroenterology physician with a practice address in Milford, Massachusetts, and NPI 1376679761, issued on Feb 27, 2007. Check the license (Massachusetts 238133, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Brett Hassan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 238133 MA
Self-reported in NPPES; status is on the state search - Practice location
- 215 West St, Milford, MA 01757
- Phone
- (508) 478-6366
- Enumerated
- Feb 27, 2007
- Record last updated
- Apr 2, 2026
- Fax
- (508) 473-2636
- Medicaid ID
- 110092623A MA
- Medicare enrollment
- Enrolled (PECOS I20120808000893); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2006
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 215 West St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victoria Afonso, PA-CPhysician Assistant1790563757
- Ali Amini, MDGastroenterology Physician1962502997
- Maureen BaileyPhysician Assistant1942895255
- Ajay Batra, MDGastroenterology Physician1053411082
- Molly Berry, MASocial Worker1013284868
- Adam Consigli, MS, PA-CPhysician Assistant1861881070
Verify Brett Hassan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 238133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average gastroenterology physician in 2024
649 Medicare Part D claims for 175 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Omeprazole240 claims
- Pantoprazole Sodium96 claims
- Linzess42 claims
- Famotidine34 claims
- Dicyclomine Hcl16 claims
- Mesalamine13 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $856.96
43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through 2 group practices
- Milford Gastroenterology Associates IncMilford, MA
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brett Hassan among 686 gastroenterology physician records in Massachusetts
Brett Hassan, M.D. is one of 686 gastroenterology physician records with a practice address in Massachusetts. 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 2007, is newer than 51% of them.
- NPI issued2007 · 51% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2006 · median 2004 among the 491 with a school on file
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Milford → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ali Amini, MDMilford, MA 017571962502997
- Ajay Batra, MDMilford, MA 017571053411082
- Albert Crimaldi, MDMilford, MA 017571538262100
- Daniel Donahue, MDMilford, MA 017571790888360
- Brian Moquin, M.D.Milford, MA 017571922192251
- Parham Safaie Semnani, MDMilford, MA 017571205099546
- Martha Tonzi, NPMilford, MA 017571477649507
- Lawrence Handler, M.D.Natick, MA 017601134101470
Common questions
What is Brett Hassan, M.D.'s NPI number?
Brett Hassan, M.D.'s National Provider Identifier (NPI) is 1376679761, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brett Hassan, M.D. located?
The NPPES record lists a practice address at 215 West St, Milford, MA, 01757. Phone: (508) 478-6366. Providers update this record themselves, so call before visiting.
How can I verify Brett Hassan, M.D.'s license?
NPPES lists Massachusetts license number 238133, 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 Brett Hassan, M.D. prescribe under Medicare Part D?
In 2024, Brett Hassan, M.D. had 649 Medicare Part D claims for 175 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Brett Hassan, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.