Katherine T. Brunner, M.D.
Gastroenterology Physician · Boston, MA
Katherine T. Brunner, M.D. is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1427317247, issued on May 14, 2012. Check the license (Massachusetts 262680, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Katherine T. Brunner
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 262680 MA
Self-reported in NPPES; status is on the state search - Practice location
- 88 E Newton St, Boston, MA 02118
- Phone
- (617) 638-6500
- Enumerated
- May 14, 2012
- Record last updated
- Jul 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (617) 638-6501
- Medicare enrollment
- Enrolled (PECOS I20150915002181); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 88 E Newton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jameel Ahmed, MDClinical Cardiac Electrophysiology Physician1326094996
- Barbara Appignani, M.D.Body Imaging Physician1609843234
- Lori Arena, PHARM.D.Pharmacotherapy Pharmacist1902809874
- Lindsay Arnold, PHARM DPharmacotherapy Pharmacist1104046937
- Bridget Asgarian, M.D.Anesthesiology Physician1902169949
- James Becker, M.D.Surgery Physician1760441059
Verify Katherine T. Brunner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 262680Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average gastroenterology physician in 2024
592 Medicare Part D claims for 182 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole124 claims
- Famotidine69 claims
- Pantoprazole Sodium60 claims
- Ondansetron Hcl33 claims
- Dicyclomine Hcl28 claims
- Amitriptyline Hcl23 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $72.15
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. 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 one group practice
- Lahey Clinic IncBurlington, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine T. Brunner among 686 gastroenterology physician records in Massachusetts
Katherine T. Brunner, 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 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2004 among the 491 with a school on file
- Record last updated2019 · 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 Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Uri Avissar, MDBoston, MA 021181134296064
- Charles Bliss, MDBoston, MA 021181740266477
- Albena Halpert, M.D.Boston, MA 021181669438925
- Christopher Huang, M.D.Boston, MA 021181205894409
- Robert Levine, MDBoston, MA 021181174566616
- Robert Lowe, M.D.Boston, MA 021181073590774
- Thomas Moore, M.D.Boston, MA 021181386621092
- Ansu Noronha, M.D.Boston, MA 021181568557775
Common questions
What is Katherine T. Brunner, M.D.'s NPI number?
Katherine T. Brunner, M.D.'s National Provider Identifier (NPI) is 1427317247, issued on May 14, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine T. Brunner, M.D. located?
The NPPES record lists a practice address at 88 E Newton St, Boston, MA, 02118. Phone: (617) 638-6500. Providers update this record themselves, so call before visiting.
How can I verify Katherine T. Brunner, M.D.'s license?
NPPES lists Massachusetts license number 262680, 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 Katherine T. Brunner, M.D. prescribe under Medicare Part D?
In 2024, Katherine T. Brunner, M.D. had 592 Medicare Part D claims for 182 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Katherine T. Brunner, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.