NPPES file of Aug 9, 2026

John M. Cornwell, MD

Emergency Medicine Physician · Taunton, MA

John M. Cornwell, MD is an emergency medicine physician with a practice address in Taunton, Massachusetts, and NPI 1023007259, issued on Oct 20, 2005. Check the license (Massachusetts 70426, 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
1023007259
Name
John M. Cornwell
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
70426 MA
Self-reported in NPPES; status is on the state search
Practice location
88 Washington St, Taunton, MA 02780
Phone
(508) 828-7108
Enumerated
Oct 20, 2005
Record last updated
Feb 22, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(508) 828-7158
Medicaid ID
0121657 MA
Medicare enrollment
Enrolled (PECOS I20050412001395); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 1972
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 88 Washington St

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

  1. Robert Bagdasaryan, M.D.Anatomic Pathology Physician1306045554
  2. Rogelio Bayog, M.D.Psychiatry Physician1487649208
  3. Stephan Becker, MDEmergency Medical Services (Emergency Medicine) Physician1174513899
  4. Courtney Bendiksen, MSN, AGACNP-BCAcute Care Nurse Practitioner1477919850
  5. Max BirkholdPhysician Assistant1689069932
  6. Peter Bosco, MDEmergency Medicine Physician1538110895

Verify John M. Cornwell 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 70426
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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34% more Medicare Part D claims than the average emergency medicine physician in 2024

302 Medicare Part D claims for 189 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. John Cornwell302
  2. Specialty average226

Most prescribed

  1. Mupirocin34 claims
  2. Doxycycline Monohydrate27 claims
  3. Albuterol Sulfate Hfa25 claims
  4. Azithromycin22 claims
  5. Methylprednisolone16 claims
  6. Prednisone12 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 one group practice

  1. Atrius Health IncPeabody, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John M. Cornwell among 1,829 emergency medicine physician records in Massachusetts

John M. Cornwell, MD is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1972 · median 2011 among the 1,200 with a school on file
  • Record last updated2010 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Massachusetts

There are 1,829 emergency medicine physician records in Massachusetts.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Peter Bosco, MDTaunton, MA 027801538110895
  2. William Brown, MDTaunton, MA 027801841710035
  3. Donna Collins, PACTaunton, MA 027801003805235
  4. Richard Fiorini, MDTaunton, MA 027801649260514
  5. Nathan Howell, MDTaunton, MA 027801518427426
  6. Christopher Roloff, MDTaunton, MA 027801255313490
  7. Leslie Sandler, MDTaunton, MA 027801750362059
  8. Pamela Spatz, MDTaunton, MA 027801477534675

Common questions

What is John M. Cornwell, MD's NPI number?

John M. Cornwell, MD's National Provider Identifier (NPI) is 1023007259, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John M. Cornwell, MD located?

The NPPES record lists a practice address at 88 Washington St, Taunton, MA, 02780. Phone: (508) 828-7108. Providers update this record themselves, so call before visiting.

How can I verify John M. Cornwell, MD's license?

NPPES lists Massachusetts license number 70426, 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 M. Cornwell, MD prescribe under Medicare Part D?

In 2024, John M. Cornwell, MD had 302 Medicare Part D claims for 189 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.