Registry data as of Aug 27, 2026

Donald Osowski, DMD

General Practice Dentistry · Southwick, MA

Donald Osowski, DMD is a general practice dentistry with a practice address in Southwick, Massachusetts, and NPI 1306916259, issued on Nov 8, 2006. Check the license (Massachusetts 13011, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1306916259
Name
Donald Osowski
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
13011 MA
Self-reported in NPPES; status is on the state search
Practice location
821 College Highway, Southwick, MA 01077
Phone
(413) 569-0511
Enumerated
Nov 8, 2006
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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Also registered at 821 College Highway

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

  1. Anne Osowski, DMDGeneral Practice Dentistry1780754630

Verify Donald Osowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 13011
    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
Find 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.

6 general practice dentistry records list a Southwick practice address

They are 6 of the 62 NPPES records with a Southwick practice address, and 3,351 general practice dentistry records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other general practice dentistry records in Massachusetts

  1. Mark Aaron, DMDGreat Barrington, MA1902020902
  2. Jamil Abbasy, DMDSouthampton, MA1992988026
  3. Muhannad AbdulghaniBrockton, MA1326806654
  4. Asma AbdullahShrewsbury, MA1225301237
  5. Sabahat Abernethy, DMD, CAGSAbington, MA1518089903
  6. Rana Abood, DMDBoston, MA1376660936
  7. Rachelle Abou-Ezzi, D.M.DNorth Andover, MA1164579389
  8. Alaa AbougamraHaverhill, MA1730862418
  9. Mario Aboujaoude, DDSFitchburg, MA1962597237
  10. Sevak Abrahamian, DDSWilmington, MA1629096599

Common questions

What is Donald Osowski, DMD's NPI number?

Donald Osowski, DMD's National Provider Identifier (NPI) is 1306916259, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald Osowski, DMD located?

The NPPES record lists a practice address at 821 College Highway, Southwick, MA, 01077. Phone: (413) 569-0511. Providers update this record themselves, so call before visiting.

How can I verify Donald Osowski, DMD's license?

NPPES lists Massachusetts license number 13011, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.