NPPES file of Aug 9, 2026

Jonathan Paul Harding, M.D.

Geriatric Medicine (Internal Medicine) Physician · Chelmsford, MA

Jonathan Paul Harding, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Chelmsford, Massachusetts, and NPI 1548295330, issued on Jul 11, 2006. Check the license (Massachusetts 155720, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1548295330
Name
Jonathan Paul Harding
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
155720 MA
Self-reported in NPPES; status is on the state search
Practice location
228 Billerica RD, Chelmsford, MA 01824
Phone
(978) 250-6000
Enumerated
Jul 11, 2006
Record last updated
Sep 11, 2025
Fax
(978) 250-6460
Medicaid ID
2112639 MA
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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8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →

Also registered at 228 Billerica RD

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

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  3. Sonia Almeida, PAPhysician Assistant1063560357
  4. Michael AyerOptometrist1770649584
  5. Alina Bahlavouni, DOPediatrics Physician1508361064
  6. Caroline Bevona, M.D.Dermatology Physician1245225044

Verify Jonathan Paul 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 155720    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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Jonathan Paul Harding among 225 geriatric medicine (internal medicine) physician records in Massachusetts

Jonathan Paul Harding, M.D. is one of 225 geriatric medicine (internal medicine) physician records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 44% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts

There are 225 geriatric medicine (internal medicine) physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 225 in Massachusetts → Every provider in Chelmsford → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Asif Merchant, MDChelmsford, MA 018241538152335
  2. Gary Winzelberg, MDBurlington, MA 018051558316869
  3. Lionel Lim, MDBurlington, MA 018031841306818
  4. Jokha Ahmed, MDLowell, MA 018541306369749
  5. David Tsai, M.D.Lowell, MA 018541386673713
  6. Vasant Patel, M.D.North Reading, MA 018641811900442
  7. Julie Moran, D.O.Tewksbury, MA 018761841231925
  8. Kshitij Gupta, M.D.Wilmington, MA 018871326411232

Common questions

What is Jonathan Paul Harding, M.D.'s NPI number?

Jonathan Paul Harding, M.D.'s National Provider Identifier (NPI) is 1548295330, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Paul Harding, M.D. located?

The NPPES record lists a practice address at 228 Billerica RD, Chelmsford, MA, 01824. Phone: (978) 250-6000. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Paul Harding, M.D.'s license?

NPPES lists Massachusetts license number 155720, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.