John Butter, MD
Internal Medicine Physician · Boston, MA
John Butter, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1629037064, issued on Mar 23, 2006. Check the license (Massachusetts 262483, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Butter
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 262483 MA
036095458 IL
Self-reported in NPPES; status is on the state search - Practice location
- 70 Francis St, Boston, MA 02115
- Phone
- (857) 307-4100
- Enumerated
- Mar 23, 2006
- Record last updated
- Aug 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150923003346); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 70 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rahul Aggarwal, MDStudent in an Organized Health Care Education/Training Program1558929703
- Michele BoyleOccupational Therapist1669827622
- Kristin Boyt, PAPhysician Assistant1225091358
- Kelly CheeversOccupational Therapist1528682713
- Kathryn Everton, DPTPhysical Therapist1972285708
- Reza Fazel, M.D., M.SC.Interventional Cardiology Physician1881795730
Verify John Butter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 262483Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average internal medicine physician in 2024
3,833 Medicare Part D claims for 383 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium456 claims
- Amlodipine Besylate210 claims
- Losartan Potassium183 claims
- Lisinopril161 claims
- Levothyroxine Sodium130 claims
- Rosuvastatin Calcium125 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.
Bills Medicare through 2 group practices
- Brigham And Womens Physicians Organization IncBoston, MA
- Physiotherapy Associates IncSouth Dennis, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.
All 2,320 in Boston → All 6,825 in Massachusetts → Every provider in Boston →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Nathan Abare, MDSpringfield, MA1386852747
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is John Butter, MD's NPI number?
John Butter, MD's National Provider Identifier (NPI) is 1629037064, issued on Mar 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Butter, MD located?
The NPPES record lists a practice address at 70 Francis St, Boston, MA, 02115. Phone: (857) 307-4100. Providers update this record themselves, so call before visiting.
How can I verify John Butter, MD's license?
NPPES lists Massachusetts license number 262483, 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 John Butter, MD prescribe under Medicare Part D?
In 2024, John Butter, MD had 3,833 Medicare Part D claims for 383 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.