NPPES file of Aug 9, 2026

Joseph J. Viadero, M.D.

Internal Medicine Physician · Turners Falls, MA

Joseph J. Viadero, M.D. is an internal medicine physician with a practice address in Turners Falls, Massachusetts, and NPI 1821087016, issued on Oct 19, 2005. Check the license (Massachusetts 54057, 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
1821087016
Name
Joseph J. Viadero
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
54057 MA
Self-reported in NPPES; status is on the state search
Practice location
8 Burnham St, Turners Falls, MA 01376
Phone
(413) 774-3751
Enumerated
Oct 19, 2005
Record last updated
Mar 27, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(413) 775-9137
Medicaid ID
6197566 MA
Medicare enrollment
Enrolled (PECOS I20050621000943); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1981
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 8 Burnham St

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

  1. Adam Blacksin, MDInternal Medicine Physician1811983810
  2. Wayne Gavryck, M.D.Addiction Medicine (Internal Medicine) Physician1780673970
  3. Judith Haupt, RNCAdult Health Nurse Practitioner1023099884
  4. Laurence Klein, MDInternal Medicine Physician1285621144
  5. Marie KolarikPhysician Assistant1528794617
  6. John Lentz, PAPhysician Assistant1437279163

Verify Joseph J. Viadero 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 54057
    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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10% more Medicare Part D claims than the average internal medicine physician in 2024

3,478 Medicare Part D claims for 94 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 55 claims were for opioids.

  1. Joseph Viadero3,478
  2. Specialty average3,176

Most prescribed

  1. Trazodone Hcl205 claims
  2. Eliquis173 claims
  3. Gabapentin165 claims
  4. Levothyroxine Sodium115 claims
  5. Atorvastatin Calcium93 claims
  6. Sertraline Hcl91 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. CH Specialty Services MA PCSpringfield, MA
  2. Curana Health OF Massachusetts LLCSpringfield, MA

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

Joseph J. Viadero among 6,825 internal medicine physician records in Massachusetts

Joseph J. Viadero, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1981 · median 2004 among the 4,103 with a school on file
  • Record last updated2012 · 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).

6 internal medicine physician records list a practice address in Turners Falls

They are 6 of the 67 NPPES records with a practice address in Turners Falls, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Adam Blacksin, MDTurners Falls, MA 013761811983810
  2. Wesley Green, MDTurners Falls, MA 013761013074285
  3. Wayne Hioe, MDTurners Falls, MA 013761215907266
  4. Laurence Klein, MDTurners Falls, MA 013761285621144
  5. Barry PoretTurners Falls, MA 013761689735185
  6. Rachna KapoorSunderland, MA 013751659767424
  7. Seth Kupferschmid, M.D.South Deerfield, MA 013731023059870
  8. Robert Leitch, MDSouth Deerfield, MA 013731598734188

Common questions

What is Joseph J. Viadero, M.D.'s NPI number?

Joseph J. Viadero, M.D.'s National Provider Identifier (NPI) is 1821087016, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Joseph J. Viadero, M.D. located?

The NPPES record lists a practice address at 8 Burnham St, Turners Falls, MA, 01376. Phone: (413) 774-3751. Providers update this record themselves, so call before visiting.

How can I verify Joseph J. Viadero, M.D.'s license?

NPPES lists Massachusetts license number 54057, 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 Joseph J. Viadero, M.D. prescribe under Medicare Part D?

In 2024, Joseph J. Viadero, M.D. had 3,478 Medicare Part D claims for 94 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.