NPPES file of Aug 9, 2026

John J. Wang, MD, MS

Internal Medicine Physician · Duxbury, MA

John J. Wang, MD, MS is an internal medicine physician with a practice address in Duxbury, Massachusetts, and NPI 1740499888, issued on May 22, 2007. Check the license (Massachusetts 234124, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740499888
Name
John J. Wang
Credential
MD, MS
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
234124 MA
Self-reported in NPPES; status is on the state search
Practice location
56 Depot St #2842, Duxbury, MA 02331
Phone
(845) 470-0370
Enumerated
May 22, 2007
Record last updated
Jul 8, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080122000230); accepts Medicare assignment
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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Verify John J. Wang 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 234124
    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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Bills Medicare through one group practice

  1. Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISNew Bedford, MA

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

John J. Wang among 6,825 internal medicine physician records in Massachusetts

John J. Wang, MD, MS 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 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 45% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1993 · median 2004 among the 4,103 with a school on file
  • Record last updated2016 · 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).

3 internal medicine physician records list a practice address in Duxbury

They are 3 of the 221 NPPES records with a practice address in Duxbury, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ulrike Kohler, M.D.Duxbury, MA 023321396723276
  2. Bryna McConarty, M.D.Duxbury, MA 023321609078849
  3. Dyan Bhatia, M.D.East Bridgewater, MA 023331376590950
  4. John Cavallo, M.D.East Bridgewater, MA 023331619914322
  5. Edward Hassan, M.D.East Bridgewater, MA 023331396784385
  6. Shikha Merchia, M.D.East Bridgewater, MA 023331689648461
  7. Veena Molagavalli, M.D.East Bridgewater, MA 023331487600979
  8. Bruce Mathew Weinstein, M.D.East Bridgewater, MA 023331396793543

Common questions

What is John J. Wang, MD, MS's NPI number?

John J. Wang, MD, MS's National Provider Identifier (NPI) is 1740499888, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John J. Wang, MD, MS located?

The NPPES record lists a practice address at 56 Depot St #2842, Duxbury, MA, 02331. Phone: (845) 470-0370. Providers update this record themselves, so call before visiting.

How can I verify John J. Wang, MD, MS's license?

NPPES lists Massachusetts license number 234124, 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. 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.