NPPES file of Aug 9, 2026

Michael David Nelson, M.D.

Internal Medicine Physician · Boston, MA

Michael David Nelson, M.D. is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1861843609, issued on Jun 22, 2016. Check the license (Massachusetts 267597, 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
1861843609
Name
Michael David Nelson
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
267597 MA
Self-reported in NPPES; status is on the state search
Practice location
50 Staniford St FL 9, Boston, MA 02114
Phone
(617) 492-3500
Enumerated
Jun 22, 2016
Record last updated
Jun 28, 2023
Medicare enrollment
Enrolled (PECOS I20191127000743); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2016
Telehealth
Offers telehealth (CMS)
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 50 Staniford St FL 9

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

  1. Katie Baird, MDInternal Medicine Physician1740719426
  2. Ksenia Blinnikova, MDFamily Medicine Physician1740646181
  3. Brandon Cobbins, MDInternal Medicine Physician1154886562
  4. Naris Ghazarians, MDFamily Medicine Physician1568993434
  5. Christina Kerner, MDInternal Medicine Physician1376235770
  6. Lauren Parrilla, ANP-CNurse Practitioner1326482894

Verify Michael David Nelson 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 267597
    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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18% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,605 Medicare Part D claims for 546 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 49 claims were for opioids.

  1. Michael Nelson2,605
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium311 claims
  2. Amlodipine Besylate192 claims
  3. Lisinopril147 claims
  4. Metoprolol Succinate100 claims
  5. Levothyroxine Sodium78 claims
  6. Omeprazole76 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. Massachusetts General Physicians Organization IncBoston, MA

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

Michael David Nelson among 6,825 internal medicine physician records in Massachusetts

Michael David Nelson, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2016 · median 2004 among the 4,103 with a school on file
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jaime Chang, MDBoston, MA 021141205825197
  2. Jeffrey Engelman, MD PHDBoston, MA 021141538159108
  3. James Evans, MDBoston, MA 021141215939533
  4. Nicolette Fontaine, MDBoston, MA 021141841287174
  5. Nancy Gagliano, MDBoston, MA 021141881680767
  6. Patricia Gibbons, MDBoston, MA 021141619967221
  7. Steven Hersch, MDBoston, MA 021141174512149
  8. Mira Kautzky, M.D.Boston, MA 021141972505402

Common questions

What is Michael David Nelson, M.D.'s NPI number?

Michael David Nelson, M.D.'s National Provider Identifier (NPI) is 1861843609, issued on Jun 22, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Michael David Nelson, M.D. located?

The NPPES record lists a practice address at 50 Staniford St FL 9, Boston, MA, 02114. Phone: (617) 492-3500. Providers update this record themselves, so call before visiting.

How can I verify Michael David Nelson, M.D.'s license?

NPPES lists Massachusetts license number 267597, 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 Michael David Nelson, M.D. prescribe under Medicare Part D?

In 2024, Michael David Nelson, M.D. had 2,605 Medicare Part D claims for 546 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.