Registry data as of Aug 27, 2026

Gregory Kosmidis, DMD

General Practice Dentistry · Cambridge, MA

Gregory Kosmidis, DMD is a general practice dentistry with a practice address in Cambridge, Massachusetts, and NPI 1568645240, issued on Dec 17, 2007. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1568645240
Name
Gregory Kosmidis
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
Practice location
10 Rogers St, Cambridge, MA 02142
Phone
(617) 497-6453
Enumerated
Dec 17, 2007
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 10 Rogers St

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

  1. Ana Maria Rizzuto, M.D.Psychiatry Physician1376590166
  2. Henry Schniewind, M.D.Psychiatry Physician1326185661
  3. Arno Tilles, MDInternal Medicine Physician1528136827

Verify Gregory Kosmidis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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.

81% fewer Medicare Part D claims than the average general practice dentistry in 2024

16 Medicare Part D claims, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D.

  1. Gregory Kosmidis16
  2. Specialty average84

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.

Industry payments in 2024: $244.27

2 payments, mostly food and beverage; the largest payer was Align Technology, Inc.. The 40,968 providers of this specialty with any payment received $593.28 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Kosmidis$244.27
  2. Specialty average$593.28

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

60 general practice dentistry records list a Cambridge practice address

They are 60 of the 5,145 NPPES records with a Cambridge practice address, and 3,351 general practice dentistry records in Massachusetts.

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 Gregory Kosmidis, DMD's NPI number?

Gregory Kosmidis, DMD's National Provider Identifier (NPI) is 1568645240, issued on Dec 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Kosmidis, DMD located?

The NPPES record lists a practice address at 10 Rogers St, Cambridge, MA, 02142. Phone: (617) 497-6453. Providers update this record themselves, so call before visiting.

How can I verify Gregory Kosmidis, DMD's license?

Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Kosmidis, DMD prescribe under Medicare Part D?

In 2024, Gregory Kosmidis, DMD had 16 Medicare Part D claims; the average among general practice dentistry prescribers was 84. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

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.