NPPES file of Aug 9, 2026

Jonathan Wells Harding, MD

Emergency Medicine Physician · Boston, MA

Jonathan Wells Harding, MD is an emergency medicine physician with a practice address in Boston, Massachusetts, and NPI 1932639416, issued on Jun 15, 2017. Check the license (Massachusetts 271284, 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
1932639416
Name
Jonathan Wells Harding
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
271284 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Deaconess RD, Boston, MA 02115
Phone
(617) 754-2339
Enumerated
Jun 15, 2017
Record last updated
Jun 15, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200619001097); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2017
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 1 Deaconess RD

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

  1. Jennifer Bui, PHARMD, BCPSPharmacist1124595129
  2. Michael Fogel, M.D.Student in an Organized Health Care Education/Training Program1023255189
  3. Sarah Ghanem, NPNurse Practitioner1477863595
  4. Eric Hyder, M.D.Emergency Medicine Physician1922458926
  5. Cindy Ku, MDAnesthesiology Physician1043451057
  6. Clifford Marks, MDEmergency Medicine Physician1265936066

Verify Jonathan Wells Harding 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 271284
    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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51% fewer Medicare Part D claims than the average emergency medicine physician in 2024

110 Medicare Part D claims for 82 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 12 claims were for opioids.

  1. Jonathan Harding110
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt17 claims
  2. Amoxicillin-Clavulanate Potass13 claims
  3. Morphine Sulfate12 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

  1. Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISNew Bedford, MA
  2. Travis County Emergency Physicians PAPearland, TX

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

Jonathan Wells Harding among 1,829 emergency medicine physician records in Massachusetts

Jonathan Wells Harding, 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 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2017 · median 2011 among the 1,200 with a school on file
  • Record last updated2017 · 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).

543 emergency medicine physician records list a practice address in Boston

They are 543 of the 41,865 NPPES records with a practice address in Boston, and 1,829 emergency medicine physician records in Massachusetts.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. J Stephen Bohan, MD MSBoston, MA 021151376509034
  2. Calvin Brown, MDBoston, MA 021151235129461
  3. Jennifer Chan, MD, MPHBoston, MA 021151750372785
  4. John Collins, MDBoston, MA 021151912976242
  5. Susan Farrell, MDBoston, MA 021151922064146
  6. Tania Fatovich, MDBoston, MA 021151407812688
  7. Paul Greenough, M.D.Boston, MA 021151902861180
  8. Stephanie Kayden, MD, MPHBoston, MA 021151629034954

Common questions

What is Jonathan Wells Harding, MD's NPI number?

Jonathan Wells Harding, MD's National Provider Identifier (NPI) is 1932639416, issued on Jun 15, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Wells Harding, MD located?

The NPPES record lists a practice address at 1 Deaconess RD, Boston, MA, 02115. Phone: (617) 754-2339. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Wells Harding, MD's license?

NPPES lists Massachusetts license number 271284, 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 Jonathan Wells Harding, MD prescribe under Medicare Part D?

In 2024, Jonathan Wells Harding, MD had 110 Medicare Part D claims for 82 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.