NPPES file of Aug 9, 2026

Mary A. Butterfield, D.O.

Geriatric Medicine (Internal Medicine) Physician · Brockton, MA

Mary A. Butterfield, D.O. is a geriatric medicine (internal medicine) physician with a practice address in Brockton, Massachusetts, and NPI 1962690800, issued on Oct 4, 2007. Check the license (Massachusetts 233618, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962690800
Name
Mary A. Butterfield
Credential
D.O.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
233618 MA
Self-reported in NPPES; status is on the state search
Practice location
940 Belmont St, Brockton, MA 02301
Phone
(774) 826-2844
Enumerated
Oct 4, 2007
Record last updated
Dec 6, 2024
Fax
(774) 826-3940
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 940 Belmont St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eden AbramsClinical Social Worker1447806690
  2. Alicemary Adams, RNRegistered Nurse1245590272
  3. Amy Agrawal, M.D.Psychiatry Physician1215166822
  4. Katie Aguilar Mendoza, PSY.D.Clinical Psychologist1619406618
  5. Adrianna Alexander, MSOT, BCPROccupational Therapist1720445802
  6. Ilona Almeida, PHARMD, RPH, BCPPPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1982003265

Verify Mary A. Butterfield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 233618    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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83% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

709 Medicare Part D claims for 165 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.

  1. Mary Butterfield709
  2. Specialty average4,246

Most prescribed

  1. Metoprolol Succinate40 claims
  2. Rosuvastatin Calcium30 claims
  3. Atorvastatin Calcium29 claims
  4. Amlodipine Besylate26 claims
  5. Lisinopril24 claims
  6. Levothyroxine Sodium22 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.

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 Brockton →

Other geriatric medicine (internal medicine) physician records in Massachusetts

  1. Alan Abrams, M.D.Cambridge, MA1619082674
  2. Hawa Abu, MDWorcester, MA1104441229
  3. Robert AchindibaFramingham, MA1245313410
  4. Jokha Ahmed, MDLowell, MA1306369749
  5. Ceyda AkartunaBoston, MA1306454350
  6. Nadia Ali, M.DRoslindale, MA1760791347
  7. Sameera Ali, M.D.Worcester, MA1760703409
  8. John Anderson, MDCambridge, MA1568462620
  9. Marie Francesca Ansay, MDBoston, MA1891480414
  10. Hassan Arif, MDRoslindale, MA1376775130

Common questions

What is Mary A. Butterfield, D.O.'s NPI number?

Mary A. Butterfield, D.O.'s National Provider Identifier (NPI) is 1962690800, issued on Oct 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary A. Butterfield, D.O. located?

The NPPES record lists a practice address at 940 Belmont St, Brockton, MA, 02301. Phone: (774) 826-2844. Providers update this record themselves, so call before visiting.

How can I verify Mary A. Butterfield, D.O.'s license?

NPPES lists Massachusetts license number 233618, 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 Mary A. Butterfield, D.O. prescribe under Medicare Part D?

In 2024, Mary A. Butterfield, D.O. had 709 Medicare Part D claims for 165 beneficiaries; 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.